Gears if far more exciting then any of the other MP games, it's fast in your face action, no camping, no huge maps, everything is right there to duke it out (no stupid noobtubes, no stupidly long jump times, you can actually evade unlike any other MP game where all you can do is strafe)
every game has a power weapon people go for (Energy Sword, Chopper etc any of these things make the games retarded but those are their special perks)