Which of the map packs already is the best-most expanding one for Fallout: New Vegas?

I'm buying new Vegas tomorrow and have enough for 1 map pack. I've already played new Vegas before, but i feel like i need one of the map packs and i can't decide, so i though i'd ask you guys...Which of the map packs already is the best-most expanding one for Fallout: New Vegas?
If you're looking to get DLC for NV, Old World Blues (the most recent one), is probably the most fun. Honest Hearts is good too, and the area it takes place in is beautiful. I didn't care much for Dead Money. It's ok if you want a challenge and the characters are good, but it's just so difficult it gets irritating when compared to the other two. I mean, you may want to play it at some point for the trophies/achievements, but if you're only getting one I'd say Old World Blues.



Trailers:



Old World Blues:

http://www.youtube.com/watch?v=XwjCTjdDy鈥?/a>



Honest Hearts:

http://www.youtube.com/watch?v=LWQiBKMqz鈥?/a>



Dead Money:

http://www.youtube.com/watch?v=eyvkQk9tS鈥?/a>Which of the map packs already is the best-most expanding one for Fallout: New Vegas?
Fallout: New Vegas has some amazing moments, though walking out of the doctor's shack and setting eyes on the world for the first time isn't quite as climactic as exiting the vault for the first time was in Fallout 3. The game handles the transition of time really well. Sunsets and sunrises look outstanding, and the glow you'll see coming from the New Vegas strip from just about anywhere in the world also looks great. Some of this is offset by the game's often-awkward animation.Which of the map packs already is the best-most expanding one for Fallout: New Vegas?
Fallout New Vegas game is amazing. While some may say it is simply an expansion of Fallout 3, I tend to disagree. The sheer amount of new material and story line's create a dozen games in one title. New Vegas has dozens of paths to go down and dozens of endings to each of those paths, making it one of the most enjoyable and replayable RPGs of our generation.



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