The graphics of Witcher 2 beats Skyrim's by far.
http://tw2.thewitcher.com/uploads/gallery/big/169-the-witcher-2-screenshot-42.jpg
http://www.otofotki.pl/img15/obrazki/pk6595_The-Witcher-2-Screenshot-39.jpg
Now that is what I call "WOW!" graphics. Very impressive.
But do graphics make a game? No.
Skyrim will beat Witcher 2 on everything else imo.
If Skyrim was made only on PC like The Witcher 2, or if it was made to be the best it could be like Battlefield 3, it would just as good, if not better.
DICE and CD Projekt Red are predominantly PC-based game developers, and as a result they cater more to the PC crowd. BGS, on the other hand, is a multi-platform developer, with the intent of pleasing all with the same quality experience.
Also, people are more than entitle to their opinions, but The Witcher was Game of the Year and best PC game of 2007. Regardless of whether you thought it "svcked" or not, the game was very successful, and The Witcher 2 will continue that trend as this game will be bigger and better in every way.