I must admit I was pleasently surprised with Thor 3D. Im not a 3D fan, maybe because I missed out on Avatar in 3D. The rest that I caught gave me migraines and in Alice I had to leave halfway thru due to the migraine it caused.
Thor's 3D was very well done, so subtle that I actually took my glasses off a few times to make sure it was 3D. And I loved it, the movie felt more realistic, not over done and no unnecessary 3D just because they can. The overall story was a bit predictable, but the way the told it made it fun to watch and the bits of comedy was well placed and not over the top. The movie has restored my faith in 3D and I will watch more of it.