John Buscema is overrated - he skimped on background more often than not.

And I am going to break a lance for the most underrated Silver Age artist : Don Heck!
Especially his Atlas Era work is a beauty to behold!

When I was younger me and my contemporaries were Ditko and Kirby fanatics - so everytime someone else was pencelling our fave books we were agahst - and Heck was our "main villain" - we even called him Don Hack!
Only later I appreciated his fine linework and good anatomy and - boy - he could draw nice womenfolk!

But the Silver Age crown has to go to Steve Ditko - his ASM and Doc Strange work still holds me in awe - even with more than 50 years on its back!