Wolverine is already hairy and being less animalistic is something the character needs and is something Wolverine already prides himself on so he isn't like Sabretooth. More skill, less stabby, stabby, raaaah, heal, slash.
Brown suit Wolverine is the one I grew up with. It just feels more Wolverine to me than the yellow/blue one. Plus being as how Logan loves the woods a bright yellow and blue costume sort of blows the whole stealth hunter motif.
@jayso4201: Well, that's just classic, I adore BWS :) But seriously, we don't want to Wolvie go back there, do we?
I really loved the orange and brown suit and I would love if he would go back to it. On the other hand, Wolverine stated he wouldn't do that and since there already is enough inconsistent Wolverine writing around...just do something entirely new.