Are you talking about Freddy's dreamworld? if you are then Freddy of course wins unfortunately. I hate Freddy, but its his world he can render it to any way he wants, and since hes going up against Jason (again) he already knows all he has to do his drown his ass. Pinhead and Myers wont be so easy. If they can pull him out to the real world its anybodies fight although it would come down to Myers and Pinhead and Myers would win imo.