I love it when it's a good match.
Especially a good match with no lag, although that's not absolutely necessary, I can put up with a little.
I hate it when one person
A: Just stands there
B: Just walks around and picks up items
C: Tries to taunt match
D: Does anything other than fight a fair game
E: Causes a ton of lag for everybody and won't drop out
I hate it when I get into a group and it's a taunt match group. Usually I have to wait ten minutes after quitting or else I'll get stuck in the same group. That's enough time for me to get involved in something else or just leave, although with the new Faux Friend Finder (since the real one was a rare SMASHBOARDS FAIL) I can sometimes get into a good friend match.
I hate how I can never get into a team match. You have to wait forever.
All these idiots who have ruined the wifi with taunt matches and that sort of thing should be collectively dragged out into the street, shot, and buried in a mass grave. I know it's not very good, but you don't have to go and destroy what we've got. On some days, as far as I'm concerned, there might as well be no wifi at all. I'd rather watch children's cartoons on the Disney Channel than sit through a taunt match.