I'll be getting BF3 at first, then I'll keep a close eye on MW3 and see how bad the quick scoping is (as in how much of it is back) and probably get it in the end if it's not as bad as MW2.
I will get MW3 tho I'm a BF vet. BF3 is meant to be played on PC .. 64 players and jet size maps. The consoles only support 24 :/
Sadly I won't be able to run BF3 until I get Ivy Bridge next year ... first time I have to skip on the fantastic game.