I've been playing competitively at my arcade for a couple of months now, and what surprised me a lot was that not a lot of people used Beat Plane as they did in MVC1.
Apparently because it was a crappy super, and Hyper Megaman does so much more damage.
But I have found that Beat Plane can be great, provided you time the super right.
Ex: Opponent prepares Ironman Super. You superjump -> Beat Plane. Flyyyy down and mash a bomb to get him out of the super then mash punch.
Against Cookie Cutter teams, of course doing such a move would be rather foolish. (Except against a Sentinel, in my experience)
What is your opinion on Beat plane?