STOP WITH THE LISTS. Geez. Next person who makes another freaking list gets to go on a long long foot hike with Follows-Chalk and Sticky WITHOUT earplugs :verymad:
In order from favorite to least.

The PItt - I'm not sure what it was exactly but this DLC really called to me first time around. Thinking Werhner was the good guy and all that. This being the most grey of the DLCs. And I just enjoyed the overall vibe of harsh conditions.
Dead Money - With my main skill being Sneak I really didn't mind taking the whole procedure slowly. I loved the characters, especially Christine, and enjoyed the change of atmosphere from the Mojave. (Lot like The Pitt I guess)
Point Lookout - Didn't really enjoy this DLC first time I played it, but when I played it a second time round I began to really appreciate it. I loved the more open environment then the other DLCs. (and I loved Desmond)
Honest Hearts - I enjoyed the environment and loved Graham and the dialogue with the characters. Though more could've been done with it and I guess I was personally hoping for civilisation.
Anchorage - Was alright really. I liked sneaking about and playing this. Didn't care much for the rewards of it really.
Mothership Zeta - More could've been done with it. Didn't much care for the weapons in it. But I liked the difference to it. I wasn't really bothered by aliens being in it.
Broken Steel - I didn't mind coming back from the dead, didn't mind the bullet sponges. I just wished this DLC had an ending like NV did, felt like such an anti-climix at the end when everyone was just like ''thanks'' and walked off..