The stealth character was able to hold himself more than the mage characte, but I've been spending a lot of pints in Sneak perk tree and over what? Over nothing! Sure that 15x damage modifier for daggger sneak attacks is neat, but have you ever used it? You probably didn't. The reason for that being that enemies keep apearing as random encounters, i.e. they see you before you see them.
The melee character was the only one who was durable enough, powerful enough and pretty much gave me ease while trying a variety of skills throughout the game. Now this is based solely on my experiences playing throughout the game, so it isn't nescassarily targeted towards someone. If you've had different experiences than me though, then feel free to post!
