I have noticed that the BF3 guys are spending way more time talking about MW3 in this forum than the MW3 guys are the other way around.
They are completly two diffrent games that my be shooters but fit completly in a diffrent sub catagory. Both games have their good and bad. What game doesn't? Just have fun only playing the one you like or both. I have played everyone of both series on xbox and xbox 360. I like them both for diffrent reasons.