I am picking up Harold & Kumar 3D Christmas from BB tonight. The only other 3D Blu-ray I own is Tron: Legacy.
I got it last week when BB had it on sale. Very funny movie with some very well done 3D. It's the second best in the series behind White Castle.
Transformers Dark of the Moon is one of the best 3D Blu-Rays out! The movie was shot in 3D,but the Transformers themselves were converted,so sometimes they can look a little cardboard cut out-ish.