ESO is an MMO set in Elder Scrolls universe, so it's not really like the others.
I would recommend:
- Oblivion Remastered
- Skyrim
The community swears by Morrowind but the original engine is essentially unplayable (and no one will admit that). There is a total conversion mod for original Oblivion (Morroblivion) that MIGHT work with Remastered - basically drops the original game in Oblivion's engine so it plays like Oblivion (with the graphical quality). It's quite good.
The same team is working on Skywind (Morrowind in Skyrim); not sure where that's up to. They're extremely close to releasing Skyblivion (which will be functionally different to Oblivion Remastered).