PC current games

Hi folks, I've been wondering for a while now what the best PC games are currently.
I do believe the last game I played on my PC was call of duty 2 which was kind of great, I spent too much time when playing, nonetheless. I think there's now a 3rd edition of call of duty. If so I would really like to know if its worthy and also what other games would you recommend me?

BTW I bought a new computer some months ago and it's quite good as far as I'm concerned, so I assume almost every game should work.

Cheers!!

I play battlefeild 2 a lot, but it is quite an old game now.
I also play Call of duty 4 ^.^