I really don't understand why everyone thinks Skyrim is going to be this "RPG Holy Grail" - I mean, they've played Bethsada's last few games, right? Morrowind was great, but certain aspects totally sucked (like combat), Oblivion was better in a couple of areas but otherwise a giant step backward in just about everything other than graphics, but this time it's going to be uniformly awesome? Bethsada is practically defined by its buggy games that have far more potential than is ever actually realized in the actual execution (fortunately on the PC at least you have the burgeoning modder community to step up to the plate and fix all the myriad things that they'll never bother to correct at all).
Dragon Age II on the other hand was a decent enough game that was severely hampered by repetition - it's one thing to revisit the same places over time, but another entirely when you learn that just about every "cave" that you'll be spending so much of your time in, no matter where you find it, is exactly the same and they'll just block off different corridors or move the exits and monsters around from iteration to iteration. For all the things it got right, we can rightfully point at the extremely lazy design (come to think of it, there was another game with that same problem... oh right, that was Oblivion - sure there were ruins and caves galore, but most of them felt like they were randomly generated from a very short list of component parts - it gets really familiar after a while).
On the other other hand, we have The Witcher 2, which is a bloody fantastic game and a marked improvement on the original, which was already one of the better RPGs I've played. I'm not even through with Chapter 1 yet (waiting for the imminent release of the patch to fix an issue with a DLC quest I'd really like to play before I end up setting events in motion that close that chapter for good), but what I've seen so far is so much better than Dragon Age II or Oblivion that it isn't even funny, especially when it comes to telling a story with real emotional impact (Oblivion doesn't really ever bother, and Dragon Age II tried but didn't really succeed most of the time).
Pretty clear choice really.