We've had smooth and the Mudder is waaay better! (to many) and I agree Res-C is not as pretty as others, natural and other. It is odd looking, even clunky-like but it's sweet in your hand.
We're lucky to have Busse/Swamprat/Scrapyard that covers all the bases and prices!
I personally don't go for looks or aesthetics on a blade but Performance and reviews of a tool/knife and it's a big reason why I like Scrapyard and Mudders.