I've got a couple of Skinner sights, one on a Winchester 94, the other on a Mannlicher Schoenauer 1952. I really like them, but have a few friends that don't care for either (the function that is - both agree that they are good looking and well built). Keep in mind that these are both mounted in the original dovetail, so they are quite a bit forward of where a frame mounted peep sight would sit. As that is the style you would be using, I would highly recommend it over a Williams/Redfield Style sight.
On a side note, I recently picked up a ATN X-Sight, and well to say it is kinda large is putting it nicely. I have it mounted on a piece of QD rail so that I can move it between rifles. One particular rifle had a folding BUIS that wouldn't clear the rear of the scope. I had to either scrap the sight, or move it forward of the scope. I moved it forward just to test it out, and to my surprise I really liked the sight picture - it is very similar to my Skinners.