It's not that I don't believe in Porter but Crawford is an all-around fighter and who knows how to take advantage of his height and reach, and we all know Crawford wants to have a unification bout against Spence and it could happen if he could win against Spence and Porter will just become a big stepping stone for this unification to happen.
Well that sounds like they are going to use Porter, it is for this reason that Porter must shine, and why not win, however I think Crawford is far superior in his technique.
Most people are going in favor of Crawford, although at a time when I practiced boxing, anything can happen, although experience and skill count, I would say that preparation before a fight defines everything, even if you have the talent and everything to be superior.