I am looking for TV with price range $600 to $800. Which one will be better TV? Thanks for advices
Depends on what you need. Both are 46" LED TVs. Both are HD, 1080p TVs. Both are smart TVs with plenty of common smart apps for multimedia consumption. However, the Samsung is a 3D TV while the Sony is not. If you need the 3D TV experience then go with the Samsung, if not, consider either and do not think you'll go wrong either way for the 2D experience.
My personal preferences are LG or Samsung LED TVs, top notch quality in my book.