This is Dusty Abell's line-up for all the Superman designs considered for the 75th Anniversary Animated short that was posted the other day. I admit... my fav is Neal Adams (but I'm always a sucker for Neal Adams art). Dusty Abell writes:
I got to be a part of the cool little Superman 75 short spearheaded by the amazing Jay Oliva and Bruce Timm. This is a line-up I did of all the different incarnations of Superman through the years that were being considered for inclusion in the short. It's kinda fun to see them all next to one another and observe what changed from year to year and decade to decade. This project was a lot of fun to be a part of.