Epic has done a great job of fine-tuning everything. The roadie run feels faster, the cover system snaps you into place nearly perfectly, and the bullets actually go to where they should. It's a bunch of minor improvements that have culminated in making the game much more enjoyable.

Gears 3 has undergone a pretty substantial makeover. The developers gave Sera an actual, tangible feeling of being alive, and being particularly desperate. The visuals are very crisp, and when you combine them with things like fractured lighting, or the tendrils of billowing smoke in the background, it really pulls you into the game.