I'm surprised no one has come in all like, "Go back to your UFC BS you trash fan, go watch that trash sport!! Blah blah blah."
And not to sound like a complete douche, but please don't refer to it at UFC. The sport is Mixed Martial Arts, calling it UFC is like saying you watch IBF, WBO, etc. and not Boxing.
All in all, you'll get use to it as it comes. You'll find that Boxing is a completely different world than MMA. Obviously the guys are going to be MUCH BETTER with their hands than Mixed Martial Artists, but you'll also see that because both of the games are so much different, why some fighters also fight the way they do in their respective arts on top of the skill difference between fighters and their skillsets.
If you want to see gritty toughness, and just a fun fighter, check out Arturo Gatti.
One of my all time favorites to watch are also Felix Trinidad, Ricky Hatton, and Tommy Hearns. All great at what they do, on top of being fun as hell to watch.