I liked the way LAN went, I think leaving LoL out, and adding TF2, maybe Unreal tournament, um... maybe a CoD ( I hear that COD 1 is free now). as well as having tournaments that you sign up for (maybe with some kind of prize)
Reason for leaving LoL out is it takes a lot of time, and a lot of people just play by themselves anyways.. There really is no reason to have it.
Also thanks for introducing me to Tribes.