Which of these games should I play?

Lol. You and I are a bit similar. I plan to re-play Morrowind and the Baldur's Gate series soon. 2 of the best games ever. I suggest play them all! Play in order depending on which ones you remember the least. Both of those games can be a great new experience if you haven't played them in a long time, especially if you change up your playstyle. I think I'm going to be Evil in my next BG playthrough.