He was the unified and lineal champion at 130. He faced the other top 3 super-featherweights back-to-back and dominated all of them in Herring, Valdez, and Conceiçāo. Add onto that the titles he's won at 126 and 135 as well as an Olympic Silver Medal and it's quite arguable that he's the most accomplished fighter on that list (or at least the most consistent). And even if you think he's boring it's impossible to deny he's incredibly talented and highly skilled.
You mean the 5 divas? What has boxing come to, when we look at the fab four of the 80s to this nonsense today. To answer your question - of the 5 divas, I'd barely say Teofimo and I don't think he is that good - Shakur might have a higher ceiling. I sincerely hope like Usyk - a LW comes from nowhere and proves to be the best
Based on resume - which should always be the defining factor in greatness/legacy discussions - at the current time it is clearly Lopez. on the eye test, I would say that Lopez is the most mercurial in the fact that he probably is the best head to head when he’s on his game, but can also be very underwhelming when he’s isn’t.
Teo has a clean win over Lomachenko, which is the best win any of them have, and he has wins that are equal to the best wins of the others after that. I also think in the dream world that these guys all fought each other, he’d come out with the best win/loss ratio. He’s shown more levels to his game and adaptability than the rest (remember when everyone thought he was going to try to blitz Loma, but he outboxed him?). His inconsistency is a problem, but he seems to fight to the level of his opposition, I think he gets up for a fight with any of the others.