I was on T-factor for a while and switched to Reflex because of sore ankle issues. I tried black top reflex and it was a very easy transition but they were just a little small for a 14 foot. I've been on Supershell for several years now. It was a harder switch for me going to the supershell than the blacktop but I've had almost no ankle injuries with them. No best binding, it depends on personal preference, goals etc.