[quote=@Archmage MC]
<Snipped quote by Chaotic Chao>

fair enough, regen it is. 

Downside? Well, not nearly as many weaknesses to exploit. 
[/quote]

I really wouldnt like regen to be honest. Imagine if you're in a torture scenario. Usually they'd have to stop at a certain point or else you'd die and be unable to give any information. But with regen, they could just keep ripping your arm (or something more personal) off until you'd give in to the constant pain. :P