How about Les vs. Bear? Now, that's a reality show I'd watch. Drop 'em both on the same island and see who does the best.
I have watched very little of either show. I've watched more of Les (more of less? ) and was impressed with what he could do with just a Leatherman.
I've heard some of the criticisms about Bear. Still, he's British SAS, so I'm sure he knows what he's doing.