Well, he was probably the best LW from about 02-09. He didn’t prove it in the same way Conor never proves anything, because he went to ROTR and then came back to UFC as a WW. Only after losing to Hughes and GSP did he go back to LW and own it for a few more years before Frankie shut him down for good.
So if you consider all time great rankings half-art-half-science, rating BJ is more on the ‘art’ side of it.
Now, how does he stack up against others? Pettis was inconsistent, Bendo was worse than Pettis and RDA, and RDA’s peak was short lived. So until Khabib and Tony, there wasn’t really a better alternative to LW Goat, except Gomi, who BJ beat.
Today, whoever is champ in May is likely the GOAT over BJ. But until recently, BJ GOAT was a very reasonable conclusion.
But if you already think he’s not and never was, I doubt anything I said just would convince you otherwise. So...agree to disagree is the most likely outcome here.
And no, I’m not quite a Boomer. Closer than most of you, but not quite.