[clief101_]

Cloud wuld win hands down

1.) before cloud was injected with jenova cell's he was physically stronger than sephiroth, this was proven when cloud overpowered and through him into the lifestream.
2.) when cloud was injected with the jenova cells, he had an incredible reaction 2 them, from what i understand, more than what sephiroth had, even though he was a baby.
3.) the strength of omnislash isnt from his sword, its clouds raw power, and it owns sephiroths nova!!!

so i vote cloud!!!