ATL Wings is probably in the top two or three for the east valley. I can only think of one for sure that I do like a little better than ATL....
Pros
Big Wings - Unlike the one biters at a local chain restaurant (that shall remain nameless), these wings are a good size. In addition, it's all meat.... not that chewy junk you find at some places.
Good Sauces - Their sauce and spices are good. I've a had a couple of different flavors and was happy with them both.
Cons
Price - A little bit expensive for wings. I think 10 wings is around 9 bucks.
Wait Time - I know people say they will wait for freshness... but dang! I'd recommend calling your order in. It wasn't even overly busy when I went in, they are just very very slow in turning tickets.