I've been trying to make some Versus threads, but can't think of a good opponent. All three groups are out of each others' league so they can't go against each other.
Here are the groups:
Special Duty Section 6 (I can't find a group picture of them from the Force manga, which is current incarnation, so here's one from StrkerS though it's missing some members)
The Investigation Team (end of Golden, all members have third form personas with all known spells, Yu has Izanagi-no-Okami and full compendium provided it doesn't make him too powerful, feats from Arena can be used)
and finally Team RWBY from RWBY (feats can be pulled from trailers, current incarnation) Here's the series and trailers.
Any help would be appreciated.