The Norris who fought Leonard vs the Benitez who fought Duran. I've got El Radae by late stoppage. 154 was Benitez's best weight and the Duran version was a truly special fighter. Norris stays in it for awhile with his skills and handspeed, but more and more Benitez separates himself with sharp counters, until one of those sharp counters put Norris down.
Benitez for sure. Competitive absolutely due to the skill level of both, but Benitez has the better ring IQ, and he would figure out the weaknesses of Norris as the rounds go by and eventually he stops him. Benitez via 9th round stoppage.