I own both a plasma and an LCD in 42" designs. Both are of similar extremely high quality but I would not call either of them the absolute best available on the market (call it second model from the top range).
I would have bought plasma but they didn't have the 1080p native pixel resolution in the 42" size (yet - I know Panasonic will have one out soon).
I prefer the LCD for native pixel resolution that suites 1080p (suitable to display HD DVD's in a native resolution)
I prefer the plasma for its better blacks and graded contrasts (night scenes are much more realistic).
I would have bought plasma but they didn't have the 1080p native pixel resolution in the 42" size (yet - I know Panasonic will have one out soon).
I prefer the LCD for native pixel resolution that suites 1080p (suitable to display HD DVD's in a native resolution)
I prefer the plasma for its better blacks and graded contrasts (night scenes are much more realistic).