Vincent and Tifa...I think that those ones are the best of the game...well if Vincent fight one day against Tifa it would surely be a hard battle, 'cause Tifa in my opinion is one of the girls that really knows how to fight, tough, she even had the courage to defeat Sephiroth by herself (using Sephiroth's sword) when the guy was watching his mother (Jenova),she wasn't successful, Sephiroth's so strong, I just can't believe that in the end they end up winning a battle against him (he ends up not dying in the end of the game, ehehehe, you know why? Because in Final Fantasy VII Advent Children he comes back :) ).
__________________