#2. Finn Balor
If there's anybody on the WWE roster who matches the in-ring ferocity of Chris Benoit, it's the very first Universal Champion Finn Balor.
While the former Prince Devitt has had his share of injuries, he's also done more to take care of his well being than the Rabid Wolverine had. A lot of that may have to do with the lessons learned from Benoit's career and death - which is at least one good thing to come out of the tragedy of the death of his family. But, there's no denying that - again in this alternate universe we keep revisiting - a match between Balor and Benoit would have been absolutely amazing.
Both wrestlers honed their craft in Japan - Balor especially, who essentially started his training in the Land of the Rising Sun (Benoit got his tutelage in the Hart family "Dungeon", before moving on to Japan as the Pegasus Kid). Both men also have similar body types - shorter guys but with compact musculature, giving them both agility and power. In this hypothetical matchup, both men would be not only flying across the ring, but hitting each other so hard, teeth might be flying into the front row.
Fun fact - Balor spent time in Japan himself as the Pegasus Kid. In case the world wasn't weird enough already.