Another 2D vote.
It may be that wearing 3D glasses over my glasses causes me to miss some of the detail, but I do not enjoy 3D at all. I occasionally will go to an animated 3D movie, but that is only if there is no 2D option available. If there is no 2D option for a live action movie, I will wait until it shows up on Netflix.
The only 3D movies that I felt were well served by the technology are Coraline and Avatar. Definitely 2D for me!