I had spent 6-7 years with various clipless pedal platforms, Looks, SPD, SPD-R, Time and just found going to Power Grips seemed to make more sense. (http://powergrips.mrpbike.com/product.php?section=product
To me it makes a lot of sense to run these pedals in cyclocross, as you don't have to worry about them getting clogged with mud/sand/snow, remounts are a breeze - no stab, stab, stab, OK, now I'm slicked in. Just stomp and turn the pedals, once you're up to speed flip them over and take off. No scraping the ground like you would with toe-clips. On longer rides you can move you foot around fore-aft, left-right to avoid hot spots. And you can use whatever shoes you want. Trail runners make the most sense for me as that's what I'd use when I'm running off the bike, and they're awful comfortable.
Am I delusional? Is there a significant advantage to a clipless system that I'm missing? (As for stiffer soles, just wear them if you want).