Oblivion is talked about a lot. Not as much as Skyrim or Morrowind, but a lot of people played it. I guess it's kinda basic compared to those two (Morrowind with its unique and developed region and Skyrim being, well, Skyrim) so there's not that much discussion to be had in comparison.
Oblivion NPC memes will always be funny tho.
http://i.imgur.com/vDci4hD.gif