Not to mention Cloud HAD already gotten in a backstab at a very distracted Sephiroth, and Sephiroth got perhaps a bit cocky in his insanity.

Also, I heard somewhere that the original idea was for Kuja to be a female, but they decided the European and American markets weren't ready for that yet and adapted matters clsoe to the end. Anyone can confirm/deny this?

Also... hmm... Kuja or Seph... a hard one, but Kuja has the greater style.