For plasma's according to all of the Consumer Reports reviews, the Panasonic's
have always been near the top, and Samsung mid to lower pack. Don't go by
contrast ratio's. Manufacturer's don't use a set standard so it's not really comparable.
If I were you I'd try to check both those, or similar models from both manufacturer's,
in a store to compare. Everyone's tastes in what makes for a good picture are different.