Fighting-wise Cloud pwns Zack's ass. He killed Sephiroth, Zack didn't so you can't argue on that.

Personality wise, Cloud is a rare person. He sometimes was cold... but sometimes very emotional. Nothing like Zack... I still like Cloud... especially when he decides on something and is sure about himself (and usually achieves what he wants).

Looking wise... Zack had long spikes... Cloud had shorter so I still like Cloud.

CLOUD PWNS.