I use the official component cables for both my Playstation 2 and Nintendo GameCube and run them through my DVDO EDGE. I have 13 consoles hooked up, obviously the older consoles should be in a 4:3 Aspect Ratio and the Wii U / PS3 in 16:9.
What about the Playstation 2 and Nintendo Gamecube though?
I have set them at both 4:3 and 16:9 and cannot say what the appropriate ratios are.
I want to view these in the best picture quality possible and that requires them to be shown in their original intended Aspect Ratio. My Wii itself has the option of 4:3 or 16:9, but the Gamecube & Playstation 2 do not.
What is the appropriate aspect ratio for these two consoles?