I like both. The original Colt Python was the ROLLS ROYCE of revolvers that's for sure. I know for me the 686 has always been a huge favorite all my life. I carry a 3" 686-6 quite regularly and have a 4" that get's some holster time too.

The Colt Cobra? Yes another beauty. To me it's what you like or what you have all are great revolvers.