Fallout 3 was much more interesting then new Vegas. Just go look at all the reviews, im sure they all cant be wrong. Obsidian may have created fallout but bethesda saved fallout.
You're right, they all can't be wrong. But there's also a lot of very good reviews for New Vegas. Surely they can't all be wrong?
Actually, no, none of them can be wrong, and they can't be right, either. They're all opinion.
Yep. Aside from that, the first game is almost always going to review better than a spinoff made with the same engine and assets. Once people have already played with the setting and the game engine you'll never re-capture the novelty of it without making major changes. Besides, referencing reviews to back up one's opinion is dubious debate form at best, IMHO. The fact that you can point at other people that agree with you doesn't directly support an assertion.
Anyway, like I said, FO3 was pretty but the story and world were (IMO) silly and two-dimensional. NV certainly had some warts, but the story, characters, and setting were deeper than those of FO3 many times over. Again, just my opinion, but that's all anyone has unless you want to go into TLDR territory.

On a side note, please stop saying that Bethesda "saved" the series. They did no such thing. That's not a comment on my opinion of Fallout 3, but rather the way that they acquired the license. They won an auction, literally. Someone would have made a Fallout 3...it just happened to be Bethesda.