I loved Fallout 3, if only because it was the first open world game I ever played. I liked the graphics and the story, even at its worst parts( looking at you, awkward greenish tint).
However, while I still enjoyed New Vegas, I felt like it was an unfinished port of Fallout 3. Why did Pork and Beans still weigh a pound? Why did we need only 7 or 8 voice actors? Why did some of the scripted moments feel so obviously scripted? Where were the raiders? Why is everything orange? I just felt like it broke a bit too far from what they did in F3, but still managed to keep the annoying parts.