I'm sincerely hoping that Rafael Marquez and Israel Vasquez are as good or better after their trilogy! Great fighters to watch!
Outside of that; Ray Robinson had several multi-fight rivalries with likes of Jake LaMotta and Gene Fullmer and still did very well after them.
Also, Pacquiao had a trilogy of fights with Erik Morales and is still in top form.
Pacman's win was the better... but not by as much as it looked.
Diaz was slower, not a long standing champ.
Casamayor was a veteran champ, cagey, and efficient.
I give Manny the nod here because Casamayor is older for a champ. It's simply inevitable that age would take his belt as much as Marquez.
Mark my words: in his next fight Casamayor's age will be obvious for all to see. If Marquez wasn't a lighter guy moving up it would've plain.
I also think that if Manny had fought Casamayor he'd have won there too.
Both great fights though...
Manny was clearly the more entertaining however. Marquez's fight was just plain boring until the eleventh.
It actually could happen now that Golden Boy and Affliction are planning on putting MMA and Boxing fights on the same card...
What else could possibly come next but crossover fights between the sports?