Yup, in the end, the game doesn’t matter much, the GM is the key. 🙂
I’d gladly re-enact the Lord of the Rings using the rules of Space Opera (or Paranoia, or no rules at all, or whatever) with some GMs I trust.
As long as the game is fun and as long as it doesn’t get in my way, I don’t care for the game system 🙂