Oblivion is a top 5 game for me. I'll always go back to it as there are tons of mods constantly coming out for PC. I beat the game the "right way" once, and I've played hundreds of hours with new characters after that without ever going into an Oblivion gate. The game world is awesome enough without the denizens of hell wandering around every 20 yards. The graphic updates (some that come to several GIGS in size) make it look insanely good with crystal clear view distances and massive textures (if your rig can handle it). If the new Fallout is anything like Oblivion (same devs) then I can expect to spend days exploring that world.