I liked The Witcher 1 a lot more than The Witcher 2. They're really different games if you go down the list. Even on the surface, they are visually a generation gap away and the control schemes are vastly different; not the same at all. Hell, even the main plot touches on different stories of The Witcher Universe with very few bridges that can be seen connected. But like I said, The Witcher 1 is clearly the better game, speaking from a huge Witcher fan. I have also read all the translated books.
I liked The Witcher 1 just some pacing issues that got on my nerves a bit. Like having to run all over that map just so you could make it night time so you could do something. That's one massive change they did in 2. So much better being able to meditate when ever you please.