I have GameCrazy, 2 GameRush stores, and, GameStop in my area...
I gotta go with GameCrazy for the most part, because I've done most of my shopping with them for used games, etc, for the past year since they opened up a store near me.
Although, I can now say that I do like GameRush, especially after trading in 12 games and getting Splinter Cell: Pandora Tomorrow, Syphon Filter: The Omega Strain for $9.99 each, and, NCAA Football 2005 for $39.99.