Personally, a big and beautiful landscape is the most important thing. Obviously, all other features are important, but the most important thing about every Bethesda game for me is having a huge, immersive landscape to explore. I invest the most time in just exploring and can spend evenings at home just marvelling at the world in the game. If it feels bigger and less restricted in space than Skyrim, I'll feel immersed and will enjoy the game, even if a lot of it does somehow turn out to be disappointing
