Sabotloader,
I have one each of the Williams FP and Lyman 57, on a couple Super Safaris I have. They both work very well and for bench shooting I love them. However I find out in the woods they are both very easily caught on clothing and brush. I prefer the WGRS for both cost and how sleek the site is. Peeps for my aging eyes are just easier to use. Personal preference comes into the equation I think. Peeps are great no matter what model or brand.