Tiny Heroes combat system in Off Topic
Talking about PvP, If combat is centred on actually landing hits, then small and fast abilities would be easier to use than big and slow abilities, even if they are statistically less effective.
With that said, I would have to agree with Darke that the armor system needs more depth. He does have a point, at least regarding potential DPS - which is all we have to go by right now. But, I think doing things by percentage is not the way to go, as I do like the idea of certain enemies being invincible to "weak" attacks, or such things, and the opportunities this opens. Perhaps this is better handled through a different mechanic, however.