Since I'm a mecha head I would have added Getter Robo and Mazinger Z and their respective movies. I think american kids would have been responsive to super robot shows like this since Gundam Wing cleaned house when it debuted on the programing block.
I wonder if the 2002 Hunter x Hunter series could have been brought over too.
Don't remember it on toonami, would be a good fit, I remember renting the movie as a kid.