I wouldn't mind seeing a simple strengths and weaknesses system, as long as we're clear on metagaming. Knowing what a character is good and bad at helps write convincingly, though personally I'd rather you give me any old situation and I find a way to make it play to my strengths, rather than to have a mission tailored to my character's abilities. 

However, I'm vehemently against anything that could, in any way, lead to "Well I'm a rank 3 swordsman, so logically I'll win in a fight". For one it stifles creativity. Also my character is, on paper, much weaker than everyone else's, and I don't want to have to turn him into some kind of sword god for the sake of keeping up.