I think your underestimating Morales boxing skills, Morales is on par with Barrera when it comes to boxing, I think Morales would of took NAZ's shots and even mixed it up more than what Barrera did to NAZ.

Morales's combo's and faints are some of the best I have ever seen, He would of beat NAZ definately.

Pac has got a weird style, it totally dazzled Barrera, Morales dealt with it really well I think !!