Finally thought of some Battle Frontier rules:
Maybe we don't need 2 of each, but just in case a member who can play wifi and someone who can play PO/PS!. You must earn 4/6 Badges, where the round then ends. 2 Losses=Disqualification. What do you think?
BW(2) OU Singles (BW OU for first round) x 2
GBU Singles x 2
VGC '12 x 2
Triples x 2
Rotations x 2
Monotype x 2