Neither of these guys are really going to fit into the top 20 LHW's of all time so their legacy doesn't really mean too much.
They helped the sport become mainstream, but against the top LHWs of all time they both failed badly.
Chuck was never as great as he and his fans like to think, he had the weakest competition of any UFC champion ever, as soon as Pride came to UFC he got KO'd fight after fight.
He might be one of the most delusional fighters of all time, thinking he capable of beating Jon Jones lol.