Quality of component over s-video, depends on your eyes. You'll have to do some testing and see if you can actually tell if there's a gain or not. To me , I find that there is a gain, less pixelation, sharper edges, better colours but that's what I see. Some might not see any gain, others will to a certain extent, other factors to consider are the source and also cables. With a bit of testing you should get your answer.