I'm not gonna go and quote every single post I agree or disagree with so I'll summarize:
The Witcher is the best RPG (and game) ever made. Enough said.
Some people see the sex as juvenile, I don't, Geralt is a ladies man, they all want a piece of his action. Hell, I'm straight and I'd throw myself at him for free given the opportunity.
Lycanthrope: I am going to give you as much rep as I possibly can for all the good things you have said about The Witcher. It is clear that you have excellent taste when it comes to quality games. Also, make a plan to play Demon's Souls. Even though there is almost no story, the gameplay more than makes up for it and the dark fantasy setting is near perfect.
Duke: Get your hands on a copy of the Enhanced Edition or Platinum Edition of The Witcher and play it. Every RPG junkie should have finished The Witcher at least once, but the more times you finish it the better. IMO it still has the best story and moral system, where your decisions have actual game-changing consequences, in any game to date and only The Witcher 2 has any chance of beating it.
Omega: Demon's Souls is good. It's actually better than good, it's fucking brilliant and my no. 2 game of all time. Unfortunately it can't touch The Witcher, nothing can.