I voted for the jumpsuit, too, though it was a hard decision! I also wanted the battlesuit!
As far as the business suit goes, did Luthor wear that before or after
Adventures of Superman aired? I'd've loved to have seen Luthor as a regular villian on that show! He could've been behind so many of the shows (the refrigeration unit, pulling the meteor down to crash into Earth, so much more)!
I raised this question on a George Reeves Yahoo club, and someone posted that due to the low budget of the show, it's unlikely they'd've hired another actor (even with a cheap skull cap)!
Gernot...