I personaly think mages are the hardest class to twink at level 19 because almost all the items are world drops and some of them are BoP.I am not for sure about the other classes but I do know that the hunters and the rogues in the 10-19 battle group pawn!!! :D

A properly twinked out warrior and pally do too. Although you rarely see them. 2.3k HP Warrior is tough to take down when hes slamming 250-300 dmg into you.
I have only seen one properly twinked pally from either side and I cnt remember what servers they came from. Thejoseph (ally) was almost untouchable. Easily the 2.3k HP of the warrior, combined with pally healing and BoF he was the perfect flag carrier :(

My 19 twinked warrior is pretty good, but I didn't plan on twinking he so I missed some of the items :(

Oh well this is what I came out with:

Head:Green tinted goggles- +100 HP enchant

Neck:Scout's Medallion

Shoulder: Defender's Spaulders

Chest: I am not real sure about what item I have but it gives +7 stamina- +100 HP enchant

Back: Sentry cloak

Wrist: Some bracers that give +4 stam and +4 str lol- +9 Stamina enchant

Hands: Thorbia's Gauntlets- Medium armor kit

Waist: Deviate Scale belt

Legs: Grunt's leggings of the Bear- Clefthide Leg Armor

Boots: Silver Linked Footguards- +9 stamina enchant

Ring: Two Blood rings

Trinket: Insignia of The Alliance

Weapon: Night reaver - Crusader enchant

I hit for about 250-300 with Night Reaver, I have 1600 hp (unbuffed).

Other than the enchant on your gloves your warrior is pretty much the same as mine. real tough in BG's, except against multiple hunters, and all their damn pets. :(

i have seen a pally called thefinalboss have 2500 health and is exalted with wsg ,us allies die if we face her :(

Haven't seen a decent 19 mage yet. They are powerful and alittle tougher, but mages dnt get good abilities til 20 so not too great. :) The world drops can be a bitch to get I know. But some items are much easier, the Hydra heart is simple if you can be bothered to camp the pond. Low lvls tend to sell the random daggers fairly cheaply (fiery wrath!) as well. Tree Bark jacket can be farmed in BFD, etc. So not too bad to locate. The upside being that mages dnt end up paying 300g for a weapon. :) Plus the leg patchs seem to be ALOT cheaper then the clefthide (STA/AGI) kind. Personally I'd say bugger off and leave the BG to the 10-19s not your lvl 70 in miniture. :P

The problem with mages in the 19 bracket is that too many of them want to stack as much fire damage as possible and barrel into a Warsong doing huge crits. The problem with this is that 10-19 WSG is absolutely flooded with rogues and hunters that will tear into a clothie.

That said, mages that stack stamina and spec frost are an amazing asset to any 10 man premade or arena team at 19.

Mages are excellent in WSG if you know how to play them. I have a few links here of good 19 mages.

Alliance
http://wowarmory.com/character-sheet.xml?r=Uldum&n=Shoopdawoopa

http://wowarmory.com/character-sheet.xml?r=Crushridge&n=Icicles

Horde
http://wowarmory.com/character-sheet.xml?r=Bronzebeard&n=Plumeria

http://wowarmory.com/character-sheet.xml?r=Bronzebeard&n=Di%C3%A5

i would like u all 2 know that mages r still really good.i have atwink mage and i am twinking only being supported by a lvl 34 :(.i have heard of a twink mage criting 604 in the 10-19 bracket plus frost nova id extremely good with polemorgh than u can hit with a fireball csueing immence dameage them frostabolt forst nova and repeat they r still really good :D

Tell me, what is so good about a 604 point fireball crit when you get two shotted by every twink rogue and hunter out there.

If you want to be a good twink mage, you stack stamina and spec frost. End of story.

I would have to agree with Epwna about the mages. I have a twinked Hunter and have a little less than 2k health... A few shots and that large fireball is sent back to the GY to rez and try again. 

well... i  guess your right but thats it... have you tried killing any1 other than rogues and hunters(they are the ones who are the actual killers there)with a mage.If you attack any1 else than the possibelity of killing the person is high becasue if you get them in a poloymorph or frost nova then hit with with the high firball crit and frostbolt you could kill them...(if you wanna see the mage that crited 640 go google huge  mage crit and u will c kim hit it :)

also rogues and hunters kill every1 in the 10-19 bracket so theres not much of a chance to kill them with a mage

Here's the best 19 twink rogue (Talent-wise, she has been a twink for.. several years.)

http://wowarmory.com/character-sheet.xml?r=Silver+Hand&n=Quikerstorm

Eh.. i asked her, she's been a twink for about a year and pvps with the best 19 WSG pvp group on the server.

LOOKY HERE

http://www.megavideo.com/?v=H8OZ4C66

Yup :P twink mages pawn! =]

your right but i am stoping my twink mage and moving to the horde so any1 who is in the retailiation battlegroup say good bye to scrix i almost won every battle for you... and i only have 803 health...lol...FOR THE HORDE!!

I have recently come to a realization about lvl 19 warrior twinks.

I used to think stamina was the key.  I stacked up as much as I could, all the way to 1.7k.  Just recently I have "re-formatted" my twink.
I replaced stamina enchants with strength.  Now my gear looks like this

Weapon: Shadowfang (Crusader)
Shield: Redbeard Crest | +6 strength +3 stamina (+7 stamina)
Head:: Green Tinted Goggles | +8 stamina +7 spirit (+100 HP)
Neck:: Scouts Medallion | +6 agility +2 stamina
Shoulder: Serpents Shoulders | +9 agility
Back: Sentry Cloak | +5 stamina +4 agility (+12 dodge)
Chest: Outrunner's Chestguard of the Bear | +5 stamina +5 strength (+100 HP)
Wrist: Fortified Bracer's of the Bear | +3 stamina + 3 strength (+7 strength)
Hands: Thorbia's Gauntlets | +3 stamina +8 strength (+7 strength)
Waist: Runescale Girdle | +8 strength
Legs: Defender's Leggings of the Bear | +5 stamina +5 strength (+30 stamina +10 agility)
Feet: Silver-linked Footguards | +3 strength +7 stamina (+5 agility)
Ring: Ring of Defense | +6 defense +20 armor
Ring: Legionnaire's Band | +4 strength +4 agility +2 stamina
Trinket: Insignia of the Horde

I am still looking for ways to improve my strength.  One being the +9 strength to bracer and possibly the +15 strength to my one-hand.
In addition to doing more damage, strength increases my block rating as well.
I am able to kill things faster and come out of encounters with significantly more HP.

I found that i pwn face with the Nightreaver and crusader as my weapon, havn'e tried a Shadowfang.

I saw a 19 twink rogue vid on youtube of a female orc. She did a 918 damaged ambush crit :O

I take back what I said.  While stacking on strength shows some pretty numbers.. stamina is still the key.

Will keep updating as I learn more hehe  : )

I had me a 19 warrior twinked for awhile engineering skills past his expertise and used searing blade. with a +7 weapon damage enchant, plus sharpening stone. It could take out a regular player in one hit when it proc'd. I got tired of 19 pvp as a warrior though, seeing too many rogues on the alli side, all the time, really got annoying. So hes lvl 32 now and been dualwielding. Will have him do 49 pvp and go armorsmith i think for the earthforged gear which is actually a nice way to even out the awesome pp gear at that lvl. I wish my paly was still 49. that was soo fun and lasted awhile.

Here's my armory link.

http://eu.wowarmory.com/character-sheet.xml?r=Xavius&n=Gnomagic

Yes, I do prefer the 40 stam 12 agi over the Runic spellthread, Gotta love stamina :)

And still have to go for fishing items and STV trinket.

Also have to replace some items,

Bracers for greenweave bracers of stamina / eagle,

Cloak enchant, replacing it for 70 armor

would like to say my twink Joanrambo (lvl 19 warrior on sunstrider) is considerd the best on my server , my highest 1h crit with shadow fang/crusader is 309 heroic strike and i still have 1800+ hp my stats are not fixed on stamina only and i have a few extra bits of gear depending on what the horde are spewing at us. trust me when i say 1h/shield is the way forward i have night reaver/crusader and smites/25 agilty and i do alot more dmg with shadowfang over all throughout the battle ground...well rattled on enough cya  heresa link to my toon.....http://eu.wowarmory.com/character-sheet.xml?r=Sunstrider&n=Joanrambo

If you are serious about 19 mages, make a horde... the deal is stack fire damage, spec frost, freeze and then melt face

Heres my recomeneded build.

Lucky Fishing Hat, +8 spell damage
Scout's Medallion
Talbar Mantle
Feyscale Cloak +70 armor
Inferno Robe +150 health (Yes its a 35+ item)
Crystaline Cuffs +9 Stamina
Serpent Gloves +20 Fire Damage
Keller's Girdle
Darkweave Breeches +35 Spell damage / +20 stamina
Nat Pagle's Extreme Anglin Boots Boar's Speed
Lavishly Jeweled Ring
Advisor's Ring
Insignia of the Horde
Arena Grand Master

.... of Firey Wrath (1h Sword or dagger)+30 Spell Damage
Pulsating Hydra Heart
Banshee Rod of the Sun

that is all, with that though, your looking at roughly +150 Firedamage.

About the mages, imo mages aren't made to dps in 19's and shouldn't go stacking fire dmg, if u want dmg u should roll rogue/hunter since they top the dmg in 19 bracket.

I'm probably 1 of the best warrior twinks on my realm. And I prefer stam over str because i've already got a rogue for dmg and my warrior is for fc-ing but I can still crit about 300 with my 1h(Butcher's Slicer)and around 350 with my 2h(Night Reaver), no buffs except crusader. Atm i've got 1943hp unbuffed and i still need the fishing gear which im trying to get for like 5 weeks now ._.
Armory:
http://eu.wowarmory.com/character-sheet.xml?r=Xavius&n=Klootkop