I would use Home if:
-When you click it from the XMB it takes you RIGHT into the game.
-Improved servers, less lagy rooms.
-Game Launching for EVERY game, have maybe a game launching center. So you can view the game launching games and join one whereever you are in Home, but the gamelaunching room will help you find people to play with.
- Trophy support. Some how, I want people to be able to view my trophies since I have alot. I want to show off some of my harder ones like this one from Killz2.