Panasonics have always had great placement flexibility and lots of features, but like all LCD projectors the light paths are not sealed. I'm a clean-freak and I was getting dust blobs in my projectors every few months. I got tired if cleaning them out and decided the inky blacks, superb colour and sealed light path was worth the extra cost of the JVC. I care not for 3D, BTW, so my opinion is based purely on the 2D capability.
Those are the exact reasons that most people jumped on the JVC boat (like I did)... Better brightness and contrast than any LCD, plus no dust blobs, and it has even more flexibility than the 7000 as far as being able to save all of the motorized functions into a lens memory (I read that the Panny doesn't do the lends shift quite as expected).
No matter what, all of these projectors are really good, it just depends on what you want. I went for best 2D movie picture and flexibility, others want better 3D, and so on.
