I think it might just be the NTSC composite that looks bad. I have never felt any desire to use RGB on my PAL Mega Drive since the composite output looks excell

I think it might just be the NTSC composite that looks bad. I have never felt any desire to use RGB on my PAL Mega Drive since the composite output looks excellent. On PAL it gives just the right amount of blending to smooth out the dithering, but at the same time is sharp enough to resolve individual pixels, and lacks any sort of rainbow effect which apparently plagues NTSC.