I think it really comes down to your style preference. They are both well made, high quality boots made with top notch materials by outstanding companies. The RW's are an oiled leather so they won't shine up like the Wolverine's.
Personally, I opted for the Iron Rangers (see my avatar). Again, that was my style preference. If one strikes you more than the other, you can't go wrong with either in terms of quality materials and craftsmanship.