Saying one was more buggy than the other is kind of puzzling since they had mostly the same bugs. New Vegas was simply built over the skeleton of Fallout 3. I put hundreds of hours into each one and had basically the same experience with bugs and crashes. Many glitches were exactly the same between both.
As for which is better, that's mostly a personal preference. New Vegas was superior in some ways but many of those improvements should be expected with a newer sequel. I enjoyed the hell out of both. All I ask is that they get a new game engine.
If I had my way, Bethesda would handle the next numbered game, while Obsidian worked on a non-numbered version like New Vegas. That would be a win-win for me.








