IMO the best fight of the night is going to be Holloway vs Gaethje and it's really hard to tell who will win this since Justin is such a one punch man that can land a single strike at any point of the fight and score a knockout. He's just a heavy hitter. I'd say Max is better technically but doesn't hit that hard.
I also like Oliveira, he's just an awesome guy, really hard working, so I'd like to see him win.
Oliveira is actually the underdog against Tsarukyan which is kind of insane because Charles I think is still in his prime. Tsarukyan is a well-rounded fight which I guess they'd see him to be the young champ.
Every fighter tonight will be motivated for that $300K addition also. They will break legs and jaws for it and I wouldn't be surprised if the oldest underdog fighter tonight throws their best to KO their opponent.