Who was the best gladiator?

Talking about Spartacus the series, ofcourse.

I am thinking its (cant remember most of the names)

1. The giant (shadow of death)
2. The whip-guy
3. The blonde-guy with two weapons
4. Crixus
5. Spartacus

Spartacus can be placed as high as no. 3 since he showed improvement in the later episodes (when he accepted his becoming a gladiator after his wife's death), but i think the whip-guy and the giant can still beat him in a match.

Pound for pound the GOAT would have to be the giant though.