I have been addicted to Far Cry 3 on the 360. I have been just running around the island picking up loot chests and relics and have only done like 4 or 5 main story quests. I almost have enough cash to pick up the badass sniper rifle in the game so that should be fun.
After that, back to Borderlands 2 on the 360. I am probably about 30% through it thus far but I am ocd about doing every single side quest for the most part so I am making it slowly through.
Aside from that, probably Torchlight II. The game is perfect to just pick up and play for a bit if I have a few minutes to spare. It's just a plain old fun dungeon crawler lootfest.