Well since last time, I now have two more at 100%.  First I finished Tomb Raider.  Most of it was quite fun apart from grinding two MP achievements.  I also got 100% in Plants vs Zombies.  After starting it in January 2012, I hadn't played much more till recently.  The last achievements were a mix of grind, and needing to get certain techniques and skill! oh and a big amount of luck.

I've also finished (but not 100%ed two GFWL games, Kane & Lynch Dead Men (shit game) and Bulletstorm which was a great game.   I'm not sure which I want to focus on for the next 100% .. maybe finish Torchlight .. just one left, but many hours to sort that out.

In the mean time, I've started Bioshock and starting to get a feel for it.  If I finish that, I'll do Bioshock 2 and get the achievements there.