[softwillow]

If you want to prevent min/maxing

Don't ever show character stats.
Don't ever show weapon speeds or damage
Don't ever show stat modifiers
Don't ever show hit points, mana, damage received or given as a number...do it like doom where as he got beat up, the avatar looked more and more beat up...That way you know your condition from looking at all the blood and bruises.
No armor. No defense.
Show players levels, skills, talents, coins and monster levels...but that is about all.

What you would be left with is a system where everyone would go on what feels right rather then what someone compiled from calculations or damage parsers. You would have people arguing for months on which weapon is better. What stats does the rune blade add to, and how much do you think it adds, etc.

Eventually people would figure it out, but would never be 100% sure. If they did this, most people would not follow a template for optimizing their class...warriors and paladins who want two handed weapons would get them, not really certain that sword and board is the path to optimum efficiency...