I hate big arrows pointing where to go, I hate fast travel, I hate meaningless little quests that do nothing but waste your time, so I don't just hate Fallout 3, I hate all games like it. Top it off that I've never been the biggest fan of Elder Scrolls games and that sums up exactly why I didn't like Fallout 3. I was really excited about it being an FPS, I was excited about every screenshot and preview I saw, but when I played it, it just felt like Elder Scrolls to me, a big empty pointless world with soulless NPCs and amateurish voice acting
That said, when I got mods to turn off a lot of the crutches, it was pretty decent. A trip into the city and through its massive subways was a truly epic survival quest when I knew I couldn't instantly teleport away and restock my supplies. Still though, I never got very far because the story was just plain GOOFY