The last "new" game I played was Halo 4. Loved it.
Lately I've gone back to old reliable titles...Just Cause 2 is awesome for just hopping around and wrecking stuff. The dialogue is hilariously cheesy, but the sheer scale of the open environment is amazing.
I also started over on Splinter Cell: Conviction. I've been playing co-op with it for a while and my skills have improved. So I'm trying the campaign on harder settings. Plus it's the last SC game with Ironsides as Sam.