Don't LOL if you aren't L'inOL.
Halo: Reach
Halo 3
Halo ODST
I haven't even played Borderlands 2, but apparantly it's a good game and Halo 4 sucks, so Borderlands for me.
By the way, I didn't actually vote, can't be arsed to fill in information.
[Edited on 12.22.2012 1:20 PM PST]