While not really liking any of the FO3 expansions (Except Broken Steel, which I never played), I really liked most of New Vegas.

I was kind of bored with Honest Hearts, though The Burned Man was excellent. One of New Vegas as a wholes better characters I felt.

Dead Money was my favorite though. It had such a tense atmosphere, and your companions were all wonderful. Not to mention Father Elija was a smurfing terrific villain. The whole time you are wanting to rip that little smurfers throat out, he is just such a delightful asshole.

Now, I may get flack, but I smurfing hated Lonesome road. You get all these mentions of the Courier in the other DLC's, and it's building him up as this great and interesting chatacter, and then you finally meet the guy. And I can't begin to describe how much I just wanted him to shut the smurf up. He drones on and on, and it all boils down to 'You brought bomb and blew Ceasers guys up and now I is sad!'. I couldn't help but think how much better that expansion would have been had they just had Father Elija escape at the end of Dead Money (He's the kind of guy who you could have seen just sending in robots at the end there). Messing with this old world trout is completely up that guys alley, and he makes for a far better antagonist then the smurfer who drones on and on about how being a courier, a man who walks from point a to b, understands the workings of the world.

My never ending annoyance of Ulyssys just killed that expansion for me, even if I did like not-E-DE.