Computer components

Price
Resolution
Display Quality
S-Video (Separate Video)
$15
480i and 576i
When used in conjunction with a component cable, is capable of 576p, 760p, 1080i, and 1080p.
Just S-Video- Good
With DVI component- High (It isn’t designed to handle high-def video(s))
DVI (Digital Visual Interface)
$50
576p, 760p, 1080p, 1080i
Very high, currently only topped by HDMI.
RGB (Red, Green, Blue) (Analog)
A.K.A. RGBA (Red, Green, Blue, Alpha)
$25
1080p
Fairly high

Pros
Cons
S-video
Flexible, able to have multiple resolutions. Capable of "Hot Swapping". (Able to be dis/re- connected while device is on)
Requires separate cable for sound. Resolutions other then standard 480i and 576i are inferior to a component that is designed for the higher resolutions.
DVI
High quality image. Can be used in part with HDMI. Since only one cable is needed to produce RGB colours, the information is transferred faster, this makes the image significantly
Expensive. Tech-savvy friends may drool on your high-def screen in wonder. HDMI component has a higher resolution then HDMI
RGB
If it is a SCART RGB display, the image is better then a standard S-Video image. Still used almost universally for computer monitors. (SCART is used for computer monitors) With SCART being used, it can handle both S-Video and RGB components.
Many different world wide standards mean that it lacks universal usage. SCART is rare outside of Europe. In order to maintain colour consistency during a movie etc. it must be routinely calibrated, this increases the likely hood of it being damaged by reducing its gamut. SCART is incapable of running both S-Video and RGB at the same time. Even with SCART it is incapable of producing images of other components (Excluding S-video) such as YpbPr. "Hot-swapping" runs the risk of damaging the device.