The funny thing is that ESO does bring some new things to the MMO scene, but these things are almost straight out of the Elder Scrolls series.
I think ESO has the spirit of Skyrim's questing and exploring, and even refined the combat into something playable. The story behind the quests in ESO are equivalent to the more well thought out quests in Skyrim, like the Guild quests. They aren't just picking up a book that tells you to go into a cave to find a spoon reward in a chest at the end. Also I really think ESO has the best combat of all Elder Scrolls. It's not purposefully clunky, and it really gives some amazing engagements for multiple mob pulls.
However, I never liked Skyrim or Oblivion, I find all of the lore and story generic and boring, the art style is ultra dull, and ESO is more of the same. So I really don't want to play ESO because it's more similar to the boring Skyrim than I'd like.
I would play ESO over Skyrim, just not at a subscription price.