basically anything that involves your friends list. getting in touch with them,talking to them,setting up games,etc is far superior on live. i click on a friend and i have every single piece of info on them. what games they have been playing,if i can join the game they are playing. if they are playing call of duty it will say something like "playing team deathmatch on airfield" so you know exactly what they are doing. i can even talk to them when we are playing 2 totally different games. i can playing gears and talk to him while they are playing madden,doesnt matter
thats why i get frustrated when i play ps3,its a pain in the ass to get a game together because you are so limited on how you are able to contact them. all you can do is invite them,thats it. you dont know if they are in the middle of a a game or what. i end up on my cellphone for 15 mins trying to get everybody into a game. its the main reason i buy games on 360 instead of ps3.