Which cables are better for video, S-Video or component?

and explain why!

Component is better than S video. S-video only separates the chroma and the luminance, 2 signals. Component is comprised of 3 signals; luminance, difference between blue and luminance, and difference between red and luminance. Component video cables are the only analog cables that support consumer HDTV. S-video is SDTV only.

http://en.wikipedia.org/wiki/ypbpr...

http://en.wikipedia.org/wiki/s-video...

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EDIT: In reference to what Larry M said, after 10 years in consumer electronics it is obvious he does not know the definition of SDTV. SDTV = Standard Definition Television. The SDTV moniker does NOT inherantly refer to 480p resolution. It can mean this, and also 480i however EDTV is usually used to describe 480p. The point I was making by using SDTV was to differentiate it from HDTV. I suppose it would have been more correct to state that S-video transmits interlaced SDTV only but the most important difference is not just component video cable's capability of carrying progressive scan signals but their capability of carrying HIGH definition TV.

Also, Larry M states that separating the chrominance and luminance is the same as separating the lights from the darks. This is not true! CHROMA (Greek) = colour, LUMIN (Latin) = light. You're separating the colour signal from the lights and darks. Another infactual statement was that component video separates the Red, Green and the Blue. Despite the colours of the cable connectors, this is incorrect. The signals provided are the entire signal and the differences between two of the colours and this is used by the television to accurately recreate the individual red, green and blue signals. See my link to Wikipedia I posted before for YPbPr.