I think the Pitt is the best of Fallout 3's DLCs that being said it's biggest drawback is that it is way too short and fast, the entire DLC left me wanting more.

Just really really fun

I'd be lying if I said I didn't enjoy Point Lookout more than Fallout 3 but at the same time it's exactly like Fallout 3 in how it takes some great ideas and fumbles then by simplifying the story.

My problem with Broken Steel isn't that it's boring, it's not that it's repetitive, it's not even the lack of any real new lore, my issue with Broken Steel is that no game should make you pay extra for the full ending.