What do you hope and think will be the biggest improvement (in skyrim) over oblivion?

My Hope: Armor system/Customization
What I think it will be: The animation

My hope: Deeper combat and more diverse dungeons

What I think it'll be: Better animation.

i hope they bring back the medium armor and pole-arm skills, I enjoyed playing as a medium-armored altmer mage jabbing people with the spear of bitter mercy in morrowind

better combat would be a plus too

Hope: Immersive Gameplay
What I think it'll be: Immersive Gameplay

Hope: combat.
Think: graphics.

Hope: Air and Water animal mechanics
Think: Only air animal mechanics

This

I would also like a dynamic world, that is brimming with life and ambience.

So far from what I have seen and read it seems like a big plus to me, and of course graphics and animation will be beefed up as well.

dream: more infamous factions, more unique armor and weapons, spell making merchants and alters available in public (not going through recommendations like in oblivion to access them)

what i will think it will be: animations, more unique landscape, and improved story telling