Fallout 3 - The Pitt, Broken Steel
Fallout: New Vegas - Dead Money, Lonesome Road
Fallout 4 - Far Harbor (compare to other F4's DLCs)

I think in FO3 the best DLC is...Operation Anchorage and Point Lookout. In F:NV all DLC is good, but i dont like Dead Money. Fallout 4 dont have a good DLC, because 3 is for crafting, The Nuka world is boring, the Far Harbor is Point Lookout in Maine.)

Overall, my favorite DLCs have been

1. Old World Blues
2. Point Lookout
3. Lonesome Road
4. The Pitt
5. Dead Money

I definitely think NV had the best of the games, but I still really think Fallout 3's DLC isn't given as much credit as it deserves

I'd have to say that Fallout New Vegas had the best DLC all around. There were a few weak ones in there, but Lonesome Road and Old World Blues were amazing. That said, I did really enjoy Far Harbor, but that alone did not make Fallout 4's DLC the best. I was really annoyed with the constant settlement addons, but oh well.

Well crap, I was able to write my heart out on my most favorite and cherished DLCs from Fallout on here but everyone seems to have beaten me to it lol.

Honestly though, my favorite from NV would be Lonesome Road since it was the very first addon I ever played( regarding Fallout). I'd also say Old World Blues is a close second. FO3s DLC were varied and I loved them for it( not as good as NV but still great IMO), and my personally favorite from the game was either Point Lookout or The Pitt. FO4, however, had only one DLC that actually impressed me. Far Harbor was a very cool addon that was eerie and delightful that I just couldn't stop playing it. I think the reason why I enjoyed it so much was that it was reminiscent of Point Lookout, but again, IMO.

So yeah, those are my favorite DLCs.

Since I am not going to even count the DLC from Fallout 4 in my decision, I think that The Pitt and Old World Blues were my favorite from each respective game. They just felt like the most different and the freshest take on the game that made me come back for many more playthroughs. Not to say that the other DLCs of each game were bad, but it was these two in particular that really made me enjoy the DLC side of Bethesda games.

New Vegas beats out FO3 in DLC but they both beat out FO4 for sure. OWB is definitely the best of the lot though. The zany characters and creatures are just great as are the weapons. The implications it had on the lore was pretty important too.

For Fallout 3 it would be Broken Steel because it lets you play after the ending. For New Vegas Lonesome Road because of the Elite Riot Gear. and Fallout 4 hands down Far Harbor.

I really loved all of New Vegas's DLC, especially the way that they were structured. I thought all of them had different elements that made them stand out in their own way. I especially loved how mostly all of them were somehow linked together by shedding some light on the characters of Deadmoney and the hidden past of the Courier with Lonesome road being the ultimate conclusion.

Although I think New Vegas had the superior DLC, I still greatly enjoyed all of the content for Fallout 3. Point Lookout being my favorite with Mothership Zeta right behind it. I cannot really comment on Fallout 4 as I have not played it's DLC yet.

My favorite had to be Dead Money, i enjoyed the challenge, and the ghost people, there needs to be more about them, missed opportunity there...

FO3: broken steel as that added free roam which I was big on since you can't do that after you finish the game.

FNV: Honest Hearts. That had a beautiful world no joke, I like that dlc the most on FNV due to the world and some good old classic guns added as well like the 1911.

FO4: Far Harbor has that was the only story dlc that was good compared to the others.

I have only really played Fallout 4 and only have Far Harbor and Automatron, so I got to say Far Harbor. It's a pretty good DLC IMO.

(I know I know I still have to play NV)

FO3: Broken Steel cause it let you play past the ending, but I also really loved Point Lookout. The Lever Action Rifle was my fav weapon back in the day

FNV: Lonesome Road. It just felt so epic, Ulysses was awesome, and the backstory of how The Courier destroyed the Divide was really cool

FO4: Far Harbor. It really was the only one I enjoyed sadly

Dead money. I liked the plot and I liked the automatic rifle (that was awesome back when I played vanilla on XBOX)

New Vegas's DLC was better than any Fallout product Bethesda have shat out. I will say Point Lookout was quite excellent but that's about it for Bethesda Fallout DLC. New Vegas's DLC has so many memorable characters, locations, plot lines, dialogue, weapons and not to mention an excellent over-arching plot that is amazingly written and presented.

Dead Money. I love how it strips your equipment and forces you to work together with this rag tag band of survivors in order to pull off the heist. I love how it connects to the original game (Elijah) and how it forces the player to let go of wealth (all that gold) in order to survive. You must make choices in Dead Money that are a constant trend throughout. Letting go of power and wealth. It is something Elijah is incapable of doing while on the other hand, the Courier must do to survive... or just use the glitch I guess.

Still, it's such a beautifully told story with a constant theme throughout which comes together in it's final act. Dog and God must let go of their rage and accept themself, Christine must let go of Elijah and let you deal with it and Dean must let go of his obsession with a two century old heist. As far as story goes, it's one of the best stories the Fallout series has ever told, no surprise considering Obsidian's track record.
I'd say Honest Hearts is a close second, Lonesome Roads third then Old World Blues.

Fallout 3 DLC was good but very weak story wise. Point Lookout was fun, Mothership Zeta was interesting, the Pitt was meh and Operation Anchorage was pointless (IMO). Broken Steel was the best Fallout 3 DLC but even then I can't say all that much about it. It was good, continued the story and gave a more definitive ending to the Enclave, opening up the adventures of the Lone Wanderer. Though sadly, it eliminated one of the more intelligent and difficult plot points: The heroes sacrifice. So that has to be taken away from it. There's something about final ultimatums that is intriguing on a moral level. While Broken Steel is worth playing on for, it's sad that it comes at the cost of one of the most serious option ever offered in a Bethesda game.

I can't comment on the Fallout 4 dlc too much as I've played none, though based on what I've seen and heard, I intend fully to wait until it comes right down in price, or the next Steam Sale rolls around. The fact that there are only 2 real DLC's and all those silly paid extras like automaton and Vault-Tec is just insulting to me as a fan. I despise paying for things that much like Hearthfire in Skyrim, should be in the Vanilla game already, and frankly, I can find higher quality mods that do the same as them.

Point Lookout and Old World Blues by a long way. Both of them ooze with personality and atmosphere. The former was also refreshingly low key in scale, focusing on a small, personal conflict rather than another chaotic save the Wasteland story.

Old World Blues, no comparison(Dialog wise LOL)

As much as I may dream of a DLC with more Cthulhu the FO3 DLCs were fun and did have a certain kick like collecting all of those tiny rocks on the Zeta ship althoe did wish you had someone to sell em to

but FNV is FNV sadly as nostalgia is nostalgia you cant beat supperior writting
one was made for shoot em ups another was made for Story and shoot em up scenarios

Adventures of Joshua , Magical Jar People and The Fight of 2 Angry Mail Men

Whats not to Love no ?

I have yet to see a better DLC than Dead Money, great great atmosphere, good story, very memorable characters. I still listen to "Begin again" once in a while