Well one thing for sure, the textures made in the last 2 years vastly surpass the textures from 5 years ago. The interrior of the AE, the new costume sets all have much crisper, higher resolution textures.
If you look at the costume pieces from release, and some brick building textures in Steel for example, you can see that the textures themselves are much lower resolution. What annoyed me most was the textures on costumes. Some very old costume pieces are very pixellated while the newer ones look great.
Just improving those textures (which would be a HUUUUGE load of work I'd imagine) would improve the general graphics experience imensely, imho.
