Before Crawford became undisputed at 140, I always felt like he is the best boxer at 147 the day he moves up to welterweight. I think he is the most talented guy in arguably the most competitive division in boxing.
Having said that, any fighter that signs with Bob Arum cannot be serious about fighting guys from PBC. There is very little evidence to suggest those fights will become a reality. He resigned with Top Rank in 2018 when it was clear every other fighter with a name was aligned with Haymon at his weight class. He didn't even get Manny when both of them were with Top Rank. We wanted to see Spence fight Thurman, Garcia, Porter years ago. I can understand why it didn't happen back then, Spence was more risk than reward. But I never felt like the fights wouldn't happen because they all fought under the PBC banner. The fights just didn't happen when I wanted them to happen. Everyone will want to fight Spence now that he is undisputed and the biggest PPV star in the division outside of Manny. The reward justifies the risk now. But where does this leave Crawford? He is not necessarily a PPV attraction and can only sell our arenas in Omaha. Spence is openly talking about Manny, Garcia, Porter rematch, or possibly a fight with Julian Williams at 154. (ALL PBC guys) Spence has considerably more options at competitive fights than Crawford. We can't say for sure Spence/Crawford ever happens.
I still think Crawford is the most talented but I don't know if he can beat Spence. Truth is Crawford has not fought anybody at 147 that's as good as Ugas, let alone Porter, Garcia, Thurman, or Spence. Nobody was clamoring for a fight between him and Benavidez or Amir Khan. We just don't know and we may never know.