I can't decide which one to put on Kang the Decapitator. I am a lvl 45 warrior w/ arms/fury mix atm. Any suggestions?

mongoose

Neither dont waste your money on twinking its sad.

mongoooose

So, don't even add a +15 agi or something, just to give my weapon a little edge?

Mongoose = more burst damage from the extra AP when it procs.

+AGI = stable dmg output/crit chance.

Depends on your preference. However mongoose has been demonstrated to do more dmg overall.

I was told that mongoose comes with a lot of agility which is why I hear it is so good.  I did get the enchant and so far it seems I've gotten better. I wish enchants like mongoose would explane itself better so there isnt any guessing.  Facts are better then assumptions and peoples opinions.  Is it agility, is attack power. It would help so we know what we are comparing it too.

Yes, I agree that what ever helps in range is great which I seem to have no problem in haha.  In arena and bg though, its not going to always be in range and I think our other role besides range that kicks in and thats surviving. Hunters should fight melee not as tanks (of corse) but as a back up plan. They wouldnt allow us dule weapon, and many ranges of weapons if that wasnt their role. My 2v2 rocks in arena and I noticed ever since I got the enchant that I have improved.  My range has a lot of power. I've survived many in your face combat fights just long enough for me and my partner to get the advantage we need.  I feel that I'm doing exactly what Im supposed to be doing as a hunter and mongoose seems to be working for me.  Thats just my experiance though.  I'm more into pvp anyways. Raids bore me. lol

My bad! Ment that for Best for Hunters. Q; lol. 

Well, for a warrior it wouldnt really make a differance if you was DPS, Agility add DPS to Rogues and Hunters ONLY!
In warriors it just increases Crit chance and Armor slightly :)
Hope i helped! :)

Id go savagry imo.