the ao/mei/chojuro team was a sort of meta for a period of time that i consistently found in my sage. it's died out now since that was quite awhile ago and most people have well...moved on to sosp. i've never seen the other teams in serious pvp fights.

consider that some of these teams have special modifications (namely that the barrier ninja always moves first) and their added buffs (health, chojuro's bloodthirst).