Bruce, I am in the same situation as you. I have been trying to decided between a Samsung and the LG. I would really prefer the LG9600 but no one seems to know when it is going to be released. I have been waiting on the Samsung ES7100 which is the same as the ES8000 except without the camera and voice controls which I have no interest in but it is also still waiting to be released. So the only two available today to compare is the two you looked at. I am going to HHGreg tomorrow to view the LG7600 vs the Samsung ES8000.
What I have read indicates that the LG is much better for 3D and the Samsung is better for non 3D PQ.