Idk, I find Alexander Volkanovski to be more skilled, which is super impressive considering his background isn't even in fighting.
He also doesn't need to waste energy to make guys feel pressured, similar to Darren Till (specifically when Darren is standing).
He's high level, if not elite, in all areas except submission offense. In the stand up he has the range, the timing, the vision, the speed, footwork, intelligent pressure, cage cutting, strike selection, feints, educated jab, and even power.
Grappling wise he's got great cage pressure and good TD's off the cage, string in the clinch, positionally aware, willing to cage wrestle and shoot in the middle of the cage, great scrambles and positioning, bullet proof TDD. And like Volk says, his little dinosaur legs only make it easier for him to pop back up.
To me he is the most impressive fighter in the history of this sport.