Skyrim is a close second to Morrowind, it does some things better, but it also has taken steps backward in other places. Aside from the Shivering Isles Oblivion doesn't get much in the way of consideration--this is especially true since with a texture overhaul my version of Morrowind looks almost, if not as good as vanilla Oblivion. I have been pretty impressed with the cities in Skyrim, they are also more populated a definite point in Skyrim's favor, but I haven't quite had that coming out of the rain and fog to see the first canton of Vivec moment yet, though seeing Whiterun for the first time came close as have a couple of other discoveries.