Either Ngannou or Lewis I suppose—but that’s mainly due to their insane power and ability to land that power shot. It’s not due to being excellent wrestlers.
Your stat about most TDs doesn’t mean much when Francis fights those guys when they’re completely washed (or well on the way to being washed, in Stipe’s case).
I agree with you that TDD also can involve use of distance and retaliation to prevent them. Bit that we wouldn’t judge someone’s wrestling ability based on that. We wouldn’t say, “Damn, look how much Derrick Lewis improved his wrestling! When Blaydes grabbed his leg, Lewis blasted him unconscious with an uppercut!” That wouldn’t make sense. We could comment on his power and striking ability, but not wrestling. That’s basically what happened with Ngannou-Blaydes, and Ngannou-Cain. What happened with Stipe is almost entirely a consequence of Stipe’s choice of takedown, and poor technique on that particular takedown.
I’m not saying Francis can’t wrestle at all, clearly he has some knowledge. I’m sure he’s also improved some in the past few years as I know it’s something he has worked on. But no massive gains in his wrestling game were apparent in the Stipe rematch.