Honest Hearts. Didn't like Dead Money because of the Cloud and the casino Vault part of the quest.
Dead Money. I liked the story more honest hearts
Haven't played HH but it has to be better than a foggy visioned, booby trapped, invincible people having place.
Don't worry. There isn't that many traps around (except in some caves and they are really well hidden). And its not foggy, well, not foggy like Dead Money anyways.
^I was meaning to say that i didn't like Dead Money.
Honest Hearts is alot shorter than Dead Money, but it's story line is much richer, and in my opinion, the .45 ACP pistols are just too much to pass up.