Simply put, I think Fallout is being hurt by the Gamebryo engine, and any of the versions of it Bethesda may come up with. I would like to Fallout to look like Metro Last Light and play with the gun mechanics of Stalker CoP, but I don't think it's possible on this engine. If you all were to have the choice of an engine for Fallout to be made on, what would it be?
BTW I'm talking about Fallout as a whole, please don't move this to FO4 speculation mods.