The game is amazing, the gameplay is butter-smooth and skill-based.  If you are the better player, then you will win the fight.  The constant 30fps that I get on my PS3 is better than the extremely variable fps that I get with CoD.  The soundscape is amazing, and the knife animations are brutal.  I'm also proud to say that I started my BF3 career off with a kill, and not a death.  The 870 shotgun is a one-hit-kill out to fifteen feet, and boy is it satisfying to blow people apart with it!  The automatic weapons are fun, too, but I still need to become used to the recoil and muzzle smoke and flash.  The game is very fun, but I can already tell that there will be a great deal to learn.
-Penguin