Hello,
I bought LG LW6500 47" around a month ago. Display is good for almost all contents. 2D as well as 3D are very smooth and enjoyable to watch. My recommendations is to keep minimum 720p media as contents with 720P or higher definitions makes movie experience real fun.
I have attached my Hard disk with TV and it works perfectly. Picture quality through Harddisk is much better than when you connect Laptop/PC with the LCD.
There are some flicks when TV have troubles playing directly. But it is mainly due to Audio Codecs of the movies. Otherwise it can play almost every popular format like MKV, divx, xvid etc. I personally like mkv.
3D viewing is pretty good and it is very very similar to theatre 3D experience. There is strain while watching 3D but it is much much much lesser than Active 3D. I compared it with Sony, samsung and panasonic. I found sony least attractive as their 3D is trash. Samsung has no parallel in 2D but 3D is far from enjoyable for more than 10 mins. Pansonic 3d is very good but LG rocks. In one case i can pause the movie and still enjoy the 3D effect without any ghosting, flickering. On Active one can find it bit noisy.
Sound quality of TV is just passable but who cares when you invest over 1 lakh in tv you also buy some Home theatre kind of setup.
Regarding inputs from remote, both are good and dont feel cheap in hands. i liked motion remote, its like mouse in air but effective.
Also one can use USB hubs and increase the number of USB ports available.
By this you can keep the title of a Brave man 
