Re: Normal/non-super/average people
I've used Hero for non-super for decades (I first decide Hero could do anything when I tried it to build a sage character for a fantasy game instead of AD&D and it worked perfectly). Since then I've used it to do several levels of supers, fantasy, spies, and pulp era.
Hero was originally designed to do supers and I think that bias still shows a bit, but I think it'll do almost anything pretty well.