The more I'm playing FO:3 the more I'm liking it actually. Still add-on less, just playing the original campaign. It has it's flaws but now that I'm used to the combat system and accidently came across the voice recordings (which helped me quite a bit) it's at least enjoyable to play. To be quite honest, I think the 1st/3rd person perspective on this game really fits. The engine works pretty well for the title. I would enjoy seeing the weather effects, as rare as it might be. Perhaps acid rain, dust storms, or just heat lightning ... or something we've never experience on a pre-apocalyptic world.
Regardless, the more I'm playing FO:3 the more I'm looking for Obsidian's twist on Bethesda's perspective on the Fallout franchise. I don't have any high expectations, but considering I'm at least enjoying Bethesda's variant, I can't imagine a team with some of the 'OG's involved being making it worse.