I have the KDL-55W850A got it for a bargain 127000 along with the free gifts they were giving during Diwali ,the headphone. I would say when I buy my stuff I really look around and actually went as far as comparing it to a reference NEC display! The Sony i sreally awesome it has got a 3 dimensional quality to normal picture,HD ofcourse . It mad e my hair stand to see the super smoothness and natural images it produced over a overdone/over processed in your face Samsung/LG. Go with the Sony eyes closed.
Yeah 3D is passive and I actually enjoyed Wolverine to the Hilt without a headache. It was awesome. Make sure you have a proper sound system to make the experience complete. Denon and Heco for eg!