Samsung is by far the best at LCD's and they are usually cheaper then Sony.
Their LED TV's are outstanding in brightness and picture quality.
The 9000 Series of Samsung's will be the first to fully support 3-D that Blu-Ray group is going to try to use. The 8000's (neither 8000 or 9000 are released yet) may be 3-D compatible with firmware update or out of the box. Details on that are not yet released, or at least not where I have read.
9000 series will be their premier models, while 8000 series will be the slightly less featured model. This is how Samsung almost always releases TV's, 2 model series at a time.
Most BD-Live 2.0 Blu-Ray players will be firmware update-able to 3-D, some won't. PS3 will.
According to my latest research, I still cannot tell for sure if the current 7000 series will support 3-D.
*update*I just found an article that says the 2010 7000 series models will have native 3-D, but still no info if current 7000 series models are capable of it. link: http://www.pcmag.com/article2/0,2817,2357739,00.asp