Well I cant tell you what system to get because they basiclly do the same thing: play video games. And don't let anyone tell you Xbox or Ps3 is better. MW3 is a good game because it has small maps (the place gou are playing on) and more intesnse game modes.
Allthough MW3 may feel like a good warfare game it is made to keep the crowd happy. Kill streaks and differnt weapons choices make the close quarters combat even more fun. Battlefield is for players who want the to really experience war.
It is fr more realistic than MW3 (not graphics but gameplay). The maps are a lot bigger and the fights are usually long matches. However the better you get at it the more fun it is.
You also can drive vechicles in battlefield which you cant do in MW3 (you can drive around a little helicopter that doesn't kill and a mini remote controlled tank that can kill in MW3.) If you do get a PS3 come add me at ianking369.
Get a ps3. Its free to play any game online anytime. Fo the game, it all depends what kind of gamer you are.
Mw3 is more fast paced an jus run an gun. Bf3 is more team based an slow paced. But it has tanks helicopters an jets you can operate, only thing is there are to many people that sit in a tank the whole round an camp.
Mw3 has campers too but if you out smart them thay are easily delt with. I play both personally. I like em both.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.