The UFC does a lot of good work in terms of putting videos together and of course, their countdown shows are pretty tremendous much of the time.
In my opinion, though, the company outdid itself with their trailer for UFC 117, and they did it by employing a completely different strategy. The trailer, featured below, essentially has contender Chael Sonnen narrating how he thinks his bout with middleweight champion Anderson Silva is going to go while highlighting both fighters. It's a very interesting feel that can't help but get you excited for the fight.
Now, this fight will probably not be all that competitive, honestly. Silva is just a class or two above everybody in that division. However this commercial, combined with continued Sonnen trash talk, is going to give people the impression it is, which makes it a job well done by all parties involved.