We already know what Skyrim has done to separate itself from the pack. The question was what games are like Skyrim and the answer is nothing has everything that Skyrim has and in the fantasy genre, the only game that comes close is its older brother Oblivion.
sorry, couldn't help myself:
ya, less story, no economy, unique dungeons yielding worthless items, i MUST roleplay, boring/repeatative, lack of custimization, fewer options, LESS CHARACTER CREATION, less less less.
oh, but the roleplaying is great.