I actually think Jon Jones had an impressive road to the title, people talk about him being gifted it but:
Andre Gusmao... OK so I don't really know who the hell that was
Jake O'Brien was supposed to be a big time prospect, Jon killed his hopes
Stephan Bonnar who was on a two fight win streak at the time
Matt Hamill who Jones actually beat but there's this guy called Steve Mazzagatti
Brandon Vera when he was still very legit
Vladimir Matyushenko who always brought it and was on a three fight winning streak and then beat his next two UFC opponents after Jones
Ryan Bader who was undefeated at the time 12-0 (5-0 in the octagon) and is still a legit LHW
Then he had to beat Shogun to get the title.
I think that is an impressive and long list of fighters to get through on your way to now being a champion who really hasn't lost.