May reserve my vote for The Order, currently have it on my gamefly to play but as of right now it's the Witcher. The combat is weak and not exciting, it moves clunky, and suffers from the let's put a thousand things for you to "do" syndrome and disguise it as gameplay. The Game doesn't have enough substance to support drowning 200 hrs into doing the same quest which go something like this
1. Speak to guard/peasant/beast
2. Locate missing person/animal to be killed using witcher sense
3. Follow red footprints or Red gas to check point.
4. Use Sh1tty combat of spanning quick attack and Igni sign to defeat enemy
5. Travel half way across level to collect reward.
I like the Witcher series so I'm not being biased. I just feel that because so much went into it's lore creation and production values people think it is some great game due to the effort involved.
I also like to nominate mad max in this thread, that game sucked.