after fallout 3, bethesda had been working in skyrim and the new engine. I expect fallout 4 to be very similar to the level of quality in skyrim.
You are comparing Fallout 3 to Skyrim? Trying comparing Fallout 3 to Oblivion, that makes more sense. Skyrim is newer than Fallout 3, running on a different engine.
I've played at nearly every Fallout and Elder Scrolls game and noticed the large difference in effort. Bethesda have gone all out with Elder Scrolls, but not with aFallout. Anyone mind shedding some light on this?
Mind elaborating on what you mean?
Fallout 3, New Vegas and Oblivion are nearly identical, as far as I'm concerned, and Skyrim is on a whole different level. Skyrim will need to be compared to Fallout 4 if anything.