I don't like The Witcher.... I don't like anything about it. As a first thing, the fact I'm playing a pre-made character who already has his own story and personality kinda makes me feel like it's a japanese rpg.
As a second thing, I got bored fast of the dialogues and all. I don't know why... I just never got into the story.
As a third thing, I saw there's some sort minigame in which you win cards (actually very nicely drawn, however) by sleeping with random hot babes?? That's a bit too cheesy for an rpg with a supposedly good plot!
The graphics, as I recall, were pretty ok, however.
On a side note, MY favorite rpg was Neverwinter Nights 2.... the main storyline was just very silly, but, the dialogues and party interaction were awesome.