I say go with the 500. For wha tever reason my focus is drawn to that gun more that the rest. Oh, and look I just voted for it and now that gun leads by one!
I think supply has made up my mind for me. The Colt is not available through any distributer right now. Only one of my distributers has availability on the Stealth Hunter (only 3 in stock) and the 500's are pretty much a dime a dozen. Everybody has em in stock, one Dist. has 18 of them. So, I think I'm going to snag the Stealth Hunter this time around and keep a close watch on the Colt.