1) Desirable visual quality at 60 FPS-
Check and
check
2) GTX 660 OC- A bit unbalanced but... check.
My old phenom II is good enough for this generation games when it collaborate with a GTX 660 and even as low as GTX460(which I had previously). It's the next generation games such as Crysis3/Farcry3 it's not good enough for. This is where my GPU has more potential than my CPU lets it use. , it's barely not even burning up (<-- Joke). I wish I could show you a print or even better up a video of WoW on ultra but I deleted everything WoW not that long ago when I decided the game sucked.
Remember, Blizzard hasn't made WoW for benchmarking. This is a game scaled (even at ultra) to work flawlessly on as many different systems as computationally feasible. How much you wish for it, your setups 150 FPS on Ultra doesn't matter when my 965 setup has 60-70 FPS in the same game, on the same settings in the same environments. I'm sorry, It's just not relevant to a normal person. I'm not saying you should run off and buy a 965 instead of i5,i7 haha, that would be an incredibly stupid move. But if you already have one of these old CPU's and you only play World of Warcraft then you have nothing to worry about. Maybe in the next expansion or two Blizzard decides to up the min requirements a bit, but until then, yes, It is good enough.
Also my potatoes can do WoW on medium. Check your potato, bro.
FYI: Yes, I do know my system overall would be more efficient using an i5 or even i7, this is not a mystery to me.
I am/was maxing the game 2 months ago. And the second half of your text is absolutely right. Much more efficient processor than Phenoms
Edit: Also, I'm not even sure why we're arguing. Everyone agrees on the thing that matters, that i5's are better than phenoms xD