The only "problem" with the "favorite" selection is that most people will pick arabia as their favorite, so even if you don't have it as your favorite, if you match with that person and it's their favorite and you have not banned it, you'll play it. So then you'll end up playing a lot of arabia when you really like all maps.
Wait a second. I take it back. It's not a problem.
Wait a second. I take it back. It's not a problem.