I'm making a general point about fighters. He didn't beat Spence. Good fighters who are pretty beatable tend to have great resumes including those who are just contenders. Never said Porter was a bad fighter. Cotto fought lots of great fighters but typically lost to the very best. Great resume, but he lost at the most crucial times.
...in Bud's defense, until scantly more than a few bouts ago he never had fought above light welter. Not sure what Puffy Nips' excuse is supposed to be. (j/k Spence's résumé is definitely not trash...but yes Porter's is better)
If he won the fights he lost, he definitely would have the best resume. If the Queen has nuts, she would be the King!