Sleeping Dogs is a fun open-world action game, with a better-than-average story and fun melee combat. Even if you already played it on 360, it will be worth giving this edition a try as it includes all the DLC on top of improved visuals & performance.
Outland is an action-platformer that has an interesting color-switch mechanic. I didn't play it on XBLA so I'm looking forward to trying it here.
Outlast is survival-horror that involves you running and hiding from enemies since you can't really fight back. The atmosphere seems great and our own Mindy enjoyed it a lot.
Burnout Paradise is one of my favourite arcade-style racing games. It is open-world and combines the usual lapped and point-to-point racing events with unique crashing mechanics and fun stunts. No word yet on whether this will be the "ultimate box" edition that includes the numerous DLC.