LED's are clear/sharper than LCD's. Last time I bought one the salesman said Sony, Samsung, Vizio are 1,2,3 in ranking.
I have a 60 inch in my living room and it is too big. I have a 36 inch in my bedroom which I like. It is only about 6 feet rrom me so the size is just right. If it were further away I would think about a 42 or so.
Syl