I know this has been said, but I think it would make a very fun one. Our team did one today that was pretty awesome. 3v3 lv10 togepi metronome only tourney.
IVs can be perfect and still lose to a bunch of jokes, so it's just a fun way to roll the dice and just hold Z down and you're golden to watch events unfold as they may. (Togepi using Roar of Time, etc is pretty funny, too.)
I don't know how this would work in the tourney brackets but round robin worked for us, based on total number of wins, which made it easy to divide up the winnings. I dunno just a thought.