Far cry 3 is really good, but I prefer a lot of elements in Far Cry 2. Actually enjoying it more still even after completing several times.
Feels more gritty and realistic, although the story is not as gripping.
One other thing, i've seen it being said that FC3 is the most optimised game of 2012, yet FC2 plays so much faster whilst looking better on my PC. Leads me to believe that FC2 is an incredibly well coded engine.
Know Thy Enemy Attack Pattern. Currently playing with the brightness fader
I'm playing it for the first time before playing 3, even though I know the stories have nothing to do with each other. I really like it so far. It does run really well, I haven't had any problems with it. Then again that might also be because my system is practically brand new and this game is 4 years old.
So far the respawning enemies haven't bothered me too much even though I know that was a major complaint people had. I just look at it as, hey there's always something to shoot, and it's not like it takes long to clear out a guard post. Then again I'm not very far into it the game so maybe they'll really start to bug me after a while.