#1.) Tommaso Ciampa
Tommaso Ciampa had the best run of his career in 2018-19. He returned with a bang and main evented nearly every Takeover that he was on. He had an extensive run as NXT Champion, perhaps even the greatest reign in the lineage. He has a physical presence about him, similar to Triple H.
His match against Triple H would have a certain intensity and physicality to it that you could feel in the air. It has the potential to turn into one of those really special matches, as long as it happens under the NXT banner.