Help me, which is the best? SONY KLV-40D300A vs KLV-40V300A OR SAMSUNG LA-40M81

HAI i'm newbie, im planning to buy 40inch LCD TV, but now i'm confuse???

which better? SONY KLV-40D300A , SONY KLV-40V300A OR SAMSUNG LA-40M81.

Now i just have the system : Home theatre SONY DAV-IS10 and Sony Playstation3 40GB.

Please help me to decide.

Thanks