Buddy at 9ball was legendary, just a half notch below Mike and Nick on the big tables, and Buddy may well have been the best ever 9baller on the seven-footer. Not known as a straight pooler.
Buddy's true legacy is that he is the "Efren" of position play. In the same way that Efren got everyone thinking differently about kicking by demonstrating unprecedented precision and imagination, Buddy got everybody thinking differently about pattern/position play. His "clock system" set the stage for the most productive considerations ever of rotation pool position play. I wouldn't say he played the patterns any better than two other legendary position players that came later, Souquet and Appleton, but he showed everybody how to go about pattern play and his influence is still felt.
On to Rempe. One thing that I noted earlier is how both Mike and Nick transitioned seamlessly from the straight pool era to the 9ball era. Each was top five in both time periods in the respective disciplines. Rempe is another guy who transitioned seamlessly, surely a top ten player while he played in the straight pool era and top ten again once he transitioned to 9ball. Rempe was a small notch below Sigel, Buddy, Earl, Varner, Reyes, Parica and Archer as a 9baller, but he won a lot of big titles and was a very technically elegant player from whom you could learn a lot by watching.
Rempe was an elite pattern player at both straight pool and 9ball and was, by the way, an early influence of Ralf Souquet. Those of us who watched prime Mike Sigel often call him the "greatest closer we have ever watched." but if Rempe had a weakness, it was that he was not a great closer, and it often meant a lot of second and third place finishes.