I went into the store (futurshop [canada - owned by best buy]) a few weeks to buy some new cables for my sat receiver. I was just browsing the cable section and one of the workers asked if I needed help. I didnt but though hey what the hell I will let him do this job. I told him I was looking for an s-video cable to hook up my sat receiver to my new HDTV. He told me to stay away from s-video. He proceded to tell me that s-video gave the worst quality video and recommended A/V cables. They were over $100 tripple shielded monster brand cables. For the record Futureshop nor bestbuy workers get commission. I told him I was goin to browse around first. I ended up buying a shielded s-video cable from another store. I dont mind shopping there but do give a second thought to any advice they give.
For those that dont know RGB is best followed by Color Difference then S-Video, then Video (the now standard game system connection), and lastly RF. Thanks to http://www.gamesx.com/rgbadd/caveatrgb.htm for this info.