Mostyn-ap-Janet
What if Superman and Captain America had been made at each other's companies, thus developing much differently in their new canons? This (potential) series of stories seeks to answer the question for the former.
OK: So, I confess that this one requires the most chance and luck to pull off, not to mention three slightly forceful flaps from a Queen Alexandra's Birdwing.
1: Martin Goodman has to establish Timely Comics a year earlier than in our Timeline.
2:Most of the same artists and writers, Stan Lee Included, have to become a part of the company as well as Siegel and Shuster.
3: Joe Shuster's eye disease has to be treated due to a potentially better deal with Timely, so that both he and Jerry can become part of the Marvel bullpen full-time, with him designing all of Marvel's most iconic characters in Jack Kirby's place. (Excluding Spider-Man, of course.)
But let's be honest. Stranger things have and will happen(ed). Thanks for reading.