Should I get in's Creed 2 or Battlefield Bad Company 2 on PC? Need FAST replies!?

Mate i played ins creed 2 for a good 25 hours, bought all dlc for it and beat them. After that you really don't hav anything to do and u never touch it again. Bad company is just non-stop...trust me the multiplayer will last a lifetime and in a lot of ways is more enjoyable than ins creed 2