I looked at the specs of those two TVs. You can find the specs and manual on the Sharp set here:
For the LG set:
imo, the LG set is the one you want. Not only because the screen is larger but because, unlike the Sharp, it does 1:1 pixel mapping via HDMI and that's very important so you can avoid having to adjust for overscan (which doesn't work very well in the NVIDIA drivers).
Just my 2 cents.