Some good points raised, GOWEVER, you fail to state whether your going by FMV standards or in game play.. Either way the winner is Dante.. And i will say how now.

Ok either way Kratos would NOT have the power he had at the end of the GoW game as you never see him use them, furthermore, while dante can quite happily be stabbed and not feel it Kratos would be killed alike to a mortal, regardless of whom he was trained by. And by the end of GoW it was proved that mortals can kill gods, thus putting and end to the 'Kratos is a god' argument.

In game play. Still dante, medusas gaze would have NO affect on Dante as under conditions we would be forced to assume thet Dante is indeed a boss encounter, and is therefore invulnerble to any instant death attacks.
Again you fail to state which version of dante you are going by, DMC1, 2 or 3? Now here are a load of points as to why each Dante would win. Ok here goes.

DMC1: Speaks for itself Ifrit DT kick13 Kratos is as good as dead. Or again with Alastor and vortex.. No contest for this Dante, No need for the Time bangle as it is inaffective against bosses, because again we would be forced to assume that Kratosis a boss encounter.

DMC2: Though crap, dodging was hella easy and all you needed to do was wait until you could go Sparda, after that you were invulnerable completely for a short time, the second that happens Dante wins.. No question.

DMC3:- This will be broken down into fighting styles.

Trickster:- The abiltiy to telepot kinda takes away from kratos's fighting, This puts him at a huge disadvantage.

Swordmaster:- With this dante is more lethal with his melee weapons than Kratos.If i must i will even do individual descriptions for each weapon. For now this will do.

Gunslinger:- Melee weapon with air hike, E & I, Artemus and your untouchable.. Well more or less.. Once again another style that makes this cakewalk for dante.

Royal Guard:- No need to say anything, with this you are indestructable. Takes like 2 mins to defeat Vergil(mission20) on DMD mode, perhaps less time.

Quicksilver:- Slow down time indefinatly, Works against everything, Kinda takes the piss really, makes DMD mode equivilent to easy. Yet another loss to kratos.

Doppleganer:- Though perhaps the most difficult style to get used to it can be the most versitile as two dante's attacking at the same time each using a different weapon leads to destruction... So there you have it.

*Sighs* There we go X_x sorry about bumping but it just kinda annoys me that people say Kratos is all powerful when you don't ever actually see him use any godly powers. anywho yeah, i realise i have gone a bit over the top x_x...
But that's that, and yes Dante and kratos are from two seperate games so we'd never see them fight >.>'
*Coughs*