I cant believe no Hades, was by far my favorite boss from gow3 and prolly my favorite overall in the series. It wasnt just the fight itself, but the atmosphere and backdrop that made that fight truly awesome.

All of the boss fights in God of War 3 are some of the best in gaming. In my opinion, none of the other bosses in the past installments even come close to God of War 3 boss fights, maybe the Sister's of Fate...just maybe.

hades should have been there instead of ares

Hercule / Hades / Scorpion / Colosse of Rhodes

zeus (gow3) and ares (gow) are the best

the kraken in God Of War 2 is better than the kraken in the Clash Of The Titans movie.

I would say:

1) Cronos (GoW3)
2) Colossus (GoW2)
3) Armoured Minotaur (GoW)
4) Sisters of Fate (GoW2)
5) Euryale (GoW2) [underrated]

I wasn't a huge fan of GoW3's traditional boss fights.

The fight with Zeus in game 2 was absolutely nail-biting insanity, and perfectly fit as a cap to the game.

If I had to make a list...

Eh, I wouldn't bother.