Assuming that the fight took place in 2007 when both had their titles at Middleweight how does this fight go?
I'd take Taylor buy UD. Felix was a good boxer but I think Tayor would use his physicality and out work him.
I honestly think Taylor would stop him more times than not, but I think they would all be decent fights with Taylor ahead when he stops Sturm.
Taylor hardly stopped anyone but a couple of journeymen since he stepped up to world level, and Sturm was pretty hard to stop himself. I'd favor Taylor by wide decision in the US, Sturm by close decision in Germany and Taylor by close decision on neutral turf (a situation which would probably never happen).
Sturm decision for me. Sturm gets so much hate for boxing at home but the man was a tough nut to crack.