Just as a matter of pure non-productive fun. If Marvel had decided to go with a new Bronze Age design using Bronze Age characters. Who's faces would you choose.

Replace... -- ...With
Thor -- Luke Cage
Spiderman -- Ghost Rider
Hulk -- The Beast
Iron Man -- Iron Fist
Daredevil -- Captain Marvel
Angel -- Angel (in Champions costume)
Mr Fantastic/Invisible Girl -- Son of Satan and Hellcat

I know Daimon and patsy weren't a couple until the 80s, but they both made their costumed debut in the Bronze Age, they represent both the Defenders and Marvel's booming horror line and, well, Patsy was in that position on the Atlas covers anyway.

And just for fun (since you can hardly see him anyway) keep Captain America at the bottom, but have him as 'The Nomad'.

I've got all these original issues bound already (along with the Starlin run) but this series is so beautiful I'll buy it anyway. Gil Kane and Dan Adkins were a fantastic team. And I'm one of the few people on this planet (so it seems) who even likes Bob Brown.