ok, you may not see it as a huge improvement but im going to ask you to look a little harder.
first thing im going to say is that the grass is a huge improvement, there are variations in size color and shape of the mesh. its impressive to say the least when you compare it to oblivion. those of you who are drawing similarities are also not looking very deep.
next i am going to point out the mesh detail and lighting on the trees. you can see clearly that it is much more detailed and unlike the oblivion trees you can see through parts of the mesh, a flaw in oblivion [for me] was that light did not pass through parts of the mesh like it should, and that the leaves were for the most part just a solid texture. also the build of the trees is far closer to reality than that of oblivion's.
the statics in the environment MAY suffer from a bit of stylization. but i hardly see that as an issue.
i think its safe to say that this game is going to look amazing on ALL forms of hardware that its released on, so stylization should HARDLY be an issue.
please people focus more on content than graphics, look closer at the animations.
and be less critical. they look great.