Because I'm a dual wielder for over a year now I'll just throw in my two cents:

Dual wielding is the hardests warrior build and it is NOT surely for everyone. It needs time, effort, even more time and many wipes to get stuff you need. To be MS warrior all you need is standard gear with STR/STA/Crit and nice 2H weapon. Equipment of that kind is laying around all Azeroth. Adding to that factor your skill determines how good MS warrior you are/can be.

When it comes to dual wielding, and I mean REAL dual wielding, first thing to remember is that you can forget any item sets. It just won't do. You have to find items which alltogether will grant you bonuses to (not all at once of course in a single item!): STR, AP, AGI, Hit, Crit. STR and AP for damage, AGI for crit chance, armor and Dodge. Crit for increasing crit chance furthermore and Hit to be able to dicrease as low as possible miss rate, which is higher for DW. But that's not all - depending on what do you plan to do with your character you have to possess different items for several occasions - PvP - more STA would be nice, along with STR/AP/Crit. Hit is less important. When you want to raid you have to test your gear not to have too much Hit/Crit because you will draw aggro like hell. I managed to increased once my crit to 50% on Hakkar but what was the point if I took off aggro from the tank in, like 5 secs?

So why it's hard? Quite a few talents and skills to  use, not so great HP (which negative effects try to be nullifed by higher dodge/parry), hard to get gear (one item here, two items there, ten thousands wipe on the way to get this AND last but not least constant quarrels about the loot with rogues and hunters).

Beyond that is all about fun :D

For one you started off as if you knew nothing about the Fury Build warrior by saying that AP/Crit suits an Arms warrior but not a Fury Warrior. Open your eyes, lets say your 2 hander is going for 700 per strike, and dual is going for (MH)450+(OH)120=570 in a fight of 30, seconds dual wielding at 2.0 sec weapons we'll get off 13 strikes (including the dual wielding penalty) at 40% Crit 5-6 of those hits will crit
2 handers at 3.6 per strike will get off 8.33 hits. With 40% crit 3.33 crit strikes.

For those that don't know when calculating time from DW strikes, you only go by the MH speed, because the off hand works on its own clock and has to start after Main Hand swing and will only effect or slow down the "2.0" speed of the main hand if someone is dumb enough to have a slower off hand weapon.

Dual Weild Crit from MH: 900
900 x 5 =4500 Damage from Crits
+
570 x 8 =4560 Damage from Normal Strikes
Damage in 30 sec = 9060

2Hander Crits: 1400
1400 x 3 = 4200 Damage from Crits
700 x 5 = 3500 Damage From Normals
Damage in 30 Sec= 7,700

And that is only counting white damage, not even included skill strikes like MS and BT.

Now where he does have a point is this which is true the bonus to this gear has does help MS more as far as the rage reduction, cuz we always have rage for BT, but it just gives us more to perform Heroic Strike while we are waiting, and also the bonus to Overpower is big for them, since we can't use it if we are in fury stance, I've even tried to swap stances and use it after being dodged and it won't let me, scandelous.

Now last but not least the final point to prove that Fury/BT Warriors severly need attack power.

Our BT Depends on our AP and only our AP to be effective, clearly states that the strike causes damage equal to 45% of your ATTACK POWER
so how could you fix your fingers to type some stupid ish like that, tell you what playa, don't try to school us on being a warrior when you have a single track mind and haven't even tasted what it could be like.

1 more point to DW'ers, with 2handed weapons we have double the chance of extra stats, weapon buffs, and enchants, simply put, we cant be faded.

For out dpsing rogue, mages, hunter and druids in PVE you wanna go Fury, Ive got decent gear (all blues, 2 epics) with

http://www.thottbot.com/i28944 MH
and
http://www.thottbot.com/i28416 OH

and i can totally rip the shit through rogues DPS that are epiced out with kara shit..


But, i was also MS Death Wish for a long time, as i was doing some serious PVP grinding.. thus, if i were to be PVPing hardcore, i would spec for MS Death Wish with my 2h Mace http://www.thottbot.com/i29138

So basically
PVP = MS Death Wish
PVE = BT fury

Obviously in my experiences a fury warrior can rip the shit through some clothies in PVP, but if you come across a MS warrior or something heavy like a druid, its gonna be a tough fight as he will be able to do alot more burst damage, while with fury it takes a while to get started (Rampage and such)...

Enhoy ^^

Chestgaurd of the Vanquished Defender - Kael'thas Sunstrider in The Eye

Gloves of the Vanquished Defender - Leotheras the Blind in Serpentshrine Cavern

Helm of the Vanquished Defender - Lady Vashj in Serpentshrine Cavern

Leggings of the Vanquished Defender - Fathom-Lord Karathress in Serpentshrine Cavern

Pauldrons of the Vanquished Defender - Void Reaver in The Eye

For pure PvE the 2 piece set effects the worst effect you could ask for since if your deep fury your never going to go into battlestance to overpower for the 100 ap as the disruption to a fury dmg cycle isnt even made up by the AP bonus, which goes as soon as it comes.