CoD and Battlefield are brands---and people expect certain/specific things from their brands.
However, Brink is a new IP, so it has less "wiggle room", and some people expect certain things from it.
Some people like it, some don't. Some think it has potential, but feel it needs more DLC/patches/tweaks (I'm one of those).
If SD supports Brink, I think that the niche experiment will keep retaining its hardcoe fans/audience.
Right now, I feel Brink feels different, but it's missing something. I'm not a hardcoe FPS player at all (I prefer third-person games),
but even I feel CoD and Halo: Reach games have something.......more than Brink has something right now----and I play those games in single-player campaign modes only, lol.
Maybe it's the lack of an immersive story-mode or something. I feel more for Modern Warfare guys, Soap, Price, Ghost, Roach, etc, than any of the Brink guys.
Then again, both Brink and CoD are kind of low in characterization (because it's a FPS), so that really tells you something if I think the CoD guys are more interesting than Brink guys. I think it's also because I never feel.....accomplished in my missions in Brink compared to CoD and Halo: Reach. It never feels
like a suspenseful adventure like the CoD/Halo games. Maybe it's because the cutscenes don't feel cool enough? *shrug*
But that's just my personal opinion. Your personal opinion may be different than mine, and that's okay. B)
P.S.: I don't get the hate towards CoD at all, lol.
It's like a crime-procedural or a soap opera/novella thing---people like them even though they all do the same things in all of them, but maybe with little twists or little details changed.
I think it's human nature for people to like things they are used to and comfortable with. It's like Joseph Campbell's classical http://changingminds.org/disciplines/storytelling/plots/hero_journey/hero_journey.htm theory that is seen in many well-known movies, such as Star Wars and Lion King. It's something some people expect from a movie, even if it's a little predictable. It's what the general audience expect, and that's not for everyone.
Like Brink or CoD are not for everyone.
I see it as like the romance/rom-com movies you see all of the time. They have a sort of formula people expect to see: "Boy Meets Girl, Boy Loses Girl, Boy Gets Girl"---there are certain expectations that go with the medium or whatever. Sometimes that leads to a "formulaic" approach, but some romance movies change it up a bit or add little details here and there, even if the premise is the same. There could be some romance movies that try to experiment with this formula, and it's great to experiment, but it may end up being a niche movie if it's not executed properly. Critics could give those experimental movies some kudos for trying, but they (and/or the general audience) are still looking at how the movies are executed in the end.
Brink is one of those experimental things. It combines certain elements from various games (Team Fortress 2 + a tiny, simplistic bit of Mirror's Edge, etc), and it may or may not
have executed those things to different people. People have different opinions and tastes. That is life. *shrug* There is no one perfect game. There is only the game that
feels perfect in your mind/opinion. ^_^