In my experience, darker scenes are less favorable on an LCD display, this I assume due to their lower contrast ratio compared to plasmas. In the two extremes, cartoon/anime are best on an LCD but movies like the matrix are worse. The decision between the two doesn't end there, you also need to consider the native outputs of your sources for example. I went the LCD route for my HTPC, it makes the most sense, but for my friend who only does SA sources (and not top end at that) with occasional computer display, I've recommended plasma. My point is that I think if you want to talk pure picture quality and remove the source and price question, then plasma would definitely seem better to me. But factoring those in, I went LCD.