Long answer, how do you mod your game? If you want that heavily scripted gameplay run, normal skyrim is better thanks to the mcm and some bigger mods. You want the most immersion and real like mod list, old skyrim is better from what I have seen. If you say, want just a simple few mods and/or simply a prettier game that runs better, new skyrim is better for you. Personally I have both for different mod setups, but let me tell you, my old skyrim doesn't have as much textures mod as newer skyrim. Just mostly gameplay stuff and core texture packs like full hd and that it.