will it have better multiplayer than gta iv?

i am new to xbox live and i wonder if they have mlg like tournaments for games like halo reach, fifa 12, gow 3 and ssfiv. it would be really great for all the gamers to participate in tournaments like mlg. i would request gamespot and the fans to do something about it. it would be really great to compete and to get some rewards as well. thanks cheers!

psn is always down whether up or down. blu-ray is of no use because movies cost way too high. i think sony should quit ps3.

theres nothing like the xbox when it comes to matchmaking which adds unlimited value to the games as well as it has kinect which i think even the aliens would be proud of plus lots of other features check out www.xbox.com/live