For Those With Game Pads...What Are Your Favorite Games To Play With Them?

Every game I can. My joints aren't so good, and my left hand gets to the point of hurting during winter. A gamepad is easier for me to handle, and moves more actions to the right hand.

sonic games,castle crashers,and for me all third person games like dead space

Saint's Row 3 - although keyboard & mouse work well, pad may be more to your liking.
Bastion
Beat Hazard or pretty much any twin-stick shooter really.

Ah, Bastion. May have to revisit that. Playing Arkham Asylum this afternoon. Much better than K&M, so far. Fun game.

Almost every game that supports it, even FPS.
I only use my mouse for twitch shooters and multiplayer games.