usually $469.00 to $499.00 ( $479.00 at Best buy this week ) should be the pick of the litter in that price range if you are willing to pay the Sony tax ☺
I have last years 40" R4 in my bedroom best 40"-46 " LCD picture I have ever seen (after I calibrated it ) !That's why I bought it. even out of the box it's very good it actually has a little better panel than the 2014 W600 .
the W600 is close enough though and probably the best picture at this price point and does offer improved processing over last years R4 Looked good when In saw it. (not any worse than last years R4 )So if you are going for PQ this is worth a look LG isn't bad either. Having seen both the Sharp and Visio they would not be in my cart although they
could present a decent value proposition but only if the LG was so cheap now .
The Sharp Might be worth $299.00 - $325.00 I wouldn't give much more than that it's not a premium product (like Sharp used to be no matter the size ) and is probably made by Hiseense like the Insignia.
The Best deal on the planet for a decent new 42"
is the LG 42LN 5300
at Amazon , Best buy and Newewegg right now for $319.00 they were going for ~ 469.00 -$499.00 last year I have one here pretty good set. Not as good as my Sony but not bad at all .
it is last years model they sold a ton of them for a lot more they must have had a significant over run and are giving them away right now I wouldn't wait too long .+ it leaves money left over for a Roku 1 and a Blue ray spinner + an HDMI switch ☺
At that price I wouldn't even think twice about the LG
( it would qualify as an impulse buy )it can hold it's own pretty well and LG is a decent brand ( I would take LG over Vizio) but I already have one and all 6 of my sets are working fine or I would have one in my shopping cart by now. scores a respectable 4.6 customer review at B B
The Sony and LG are rear (direct lit ) panels