Conor himself isn't an original, so I don't see how he would be considered the most influential.
He has:
- Entertaining fight style - This is nothing new, from Anderson, to Fedor, Wanderlei, Liddell, Jones, Rua, Rumble
- Big wins - Do you really mean big wins or impressive showings? Because he only has three big wins: Mendes, Aldo and Alvarez. Beating Nick Diaz wasn't big, he avenged a loss in a weight class neither fighter belongs in. Poirier also wasn't big, it proved Conor was legit, and can be called a statement win, but wasn't that big of a deal.
- 2 title holder - The 3rd of 4 people to accomplish this in the UFC. Dan Henderson did before him in Pride and beat another fighter considered an all-time great at that point in his career.
- Biggest PPV events - Sold the most PPV's still not as big as UFC 100 IMO, not sure where his fights sit in total attendance or revenue.
- Biggest mainstream impact - Mainstream impact is copying the wrestling tycoon Vince McMahon's walk, which Conor admits, and being mocked for his warm-up routine. Rousey was arguably bigger before getting beat.
- 1/2 of sherdog threads being about him - I'd say 50% Khabib right now. 50% Francis leading up to his title match with Stipe. Nearly 50% about Kevin Lee coming off of his win over Barbosa.