Hand-to-hand (no powers) = Freddy
Human forms (unarmed) = Freddy
Human forms (armed) = Freddy
Dream World = Freddy
Hell = Pinhead >=Freddy
Base Fight (Powers, but not Dream World/Hell) = Pinhead
I'm not gonna count the human ones though... And the hand-to-hand attempt seems VERY unlikely...
That erases 3 wins for Freddy, SO...
Freddy - 2
Pinhead - 2
Pinhead wins with the slight advantage in a possible Hell fight.