Remember that the BF3 stuff is taken from computer gameplay, so commenting on what you've seen really has no place on the X-Box 360 forums. I'm sure it does look great on a massively upgraded CPU, but consoles aren't going to run the graphics that well.
BF3 has nothing going for it in that it isn't on the market yet. You really can't compare games in the pipeline to games in production like this. Besides, no games ever meet the expectations of the most eager fans.
I'll tell you one reason I dont like the direction games like that are going (brink included). They have too much going on. By making all the players take on different team roles you force people to work on a team, and that gives a big advantage to partys and clans. FACT: Clans are video game nerds that get laid overall less than the average population. I like to play games on my own time when I get the time. I also like the freedom to lonewolf it, and Crysis has proved to have the best Instant action free for all yet. Now don't get me wrong, using classes is a way to provide a unique experience, and not the same old shoot-kill-reload that has been ging on for a decade now. But the shoot-kill-reload is what most people fell in love with to start with.
I've been recently playing Halo & GOW 3. Both of those seem to take more than 1 whole clip to kill an opponent, so you have to team up or use your clip & then pummel your target. Only in Crysis are you going to get a Psycho kill by grenading 2-3 and then shooting 2-3 that are all focused on each other. Gotta love that.