TBE meaning "the best ever?" Absolutely. I think lightweight Duran has as good an argument as any as being the best fighter who ever lived.
If I had to pick ONE fight where I watched and said "This is the best fighter I've ever seen," it would have to be Duran-DeJesus III. Duran in that fight was the most complete fighting machine there's ever been. So yeah, I think he's TBE.
I always mention that when people talk about the greatest defensive performances ever. Duran was fighting with a controlled aggression and had Dejesus swinging at air all night. And often times, Dejesus would be punished for his miss by taking a brutal counter to his ribs.