If I have to choose between the Elder Scrolls' series and Fallout series', I would choose Fallout because I prefer a world that closely resemble mine. It is something I can relate to. While I immensely enjoy Skyrim and ESO, they were still in an universe vastly different than mine. They were beautiful, but I cannot relate to them in anyway. My backstory for my characters felt distant. So in this case, sci-fi RPG or high-medieval fantasy RPG would be fine either way, so long as it resembles close to the world I live in. Deux Ex Revolution was awesome.