I, personally, tried yesterday to start playing FO3 again, and found out that I hate that game.
My dog broke my FONV game a couple days ago (true story, don't ask) so last night, I succumbed to FO withdrawl and started a new FO3 game.
While I still got enjoyment out of it, I must say that I have been spoiled by FONV. Some of the weak voice acting & dialogue really jumps out now.
Plus I'm playing KNOWING I'm going to side with the Brotherhood of Steel no matter how evil I may be.
I don't know that I'll be able to finish this playthrough. NBA 2K11 anyone?