Cloud: Paat (spiky hair, big sword)
Tifa: Sura (can kick your ass, well-endowed)
Red XIII: Red (she's a furry lol)
Aeris: Sakura (or Shion or someone you want to die)
Vincent: Allen (so fucking emo it hurts)
Cait Sith: Masa Nori (this is obvious)
...and you will get maximum enjoyment from the game.