Why am i saying this? Well because i went through Honest Hearts like it was nothing and dead money only took me around 3 hours to beat, now old world blues is coming out. Like why are these all so short and also in my own opinion i do believe Bethesda should be the main creator of the fallout series, it's not that i hate fallout new vegas it's just to simple and does not have alot of story stuff like fallout 3 and fallout 3 dlc where so much bigger it made me think why create 4 dlcs for fallout new vegas and 5 for fallout 3 and then as i look at this not one dlc in fallout new vegas will let you live. Now i already know they said their never adding a dlc that lets you live, but really this isn't adding up and if you think when you get to the end of the game you see lots of good weapons you want and your like "oh wow i can't have that armor or weapons" I know Obsidian has made their type of fallout, but really i think bethesda rocked the world of fallout and that so they should make the next game, this is my opinion. PLEASE NO FLAMING THIS THREAD!
I feel that your opinion is ill formed and ill conceived. If you completed HH in a few hours, you weren't spending the time to explore. If you completed Dead Money in a few hours, you
definitely weren't taking the time to explore. Considering that in FO3 the biggest pro that most people cite when discussing it is the opportunity for exploration... I'm thinking you simply saw "not made by Bethesda" and resolved yourself to dislike it.
You should give the new wave a chance, bro. You might like if it you aren't looking at it through rose tinted glasses.

Futhermore, both Dead Money and Honest Hearts had more atmosphere in any one location than pretty much every Fallout 3 DLC put together. Except possibly for the Pitt, which I still believe was secretly made by people outside of Bethesda, because it's actually well written and atmospheric as opposed to pretty much every other piece of content in FO3.
I also believe that a return to Bethesdan design practices would be a massive step backwards. New Vegas was good because it recaptured what made the originals good, rather than simply copypasting The Elder Scrolls and replacing trolls with super mutants. Fallout 3's world was implausible and lacked any rationale behind its existence. It was like a theme park, not a place where I could legitimately believe people inhabit.