I drive my min-Cooper and I'm feeling super-dooper (Part 592)...

 Superman Sundays

This week we have the Superman of Various Earths.

Superman of Earth 1.  Kal El of Krypton.  founding member of the JLA.

Superman of Earth-2.  Kal-L of Krypton.  Sometime member of the JSA.  Started his career during WWII.  They can be told apart because, most of the time, this Superman is drawn with a different S on his chest, with white hair at his temples and receding hairline, with a thicker, older body, a shorter cape, and usually cuffs on the end of his sleeves.

Here we have the Earth-2 Superman on the left and the Earth-1 Superman on the right.  See the differences?

This is the Earth-3 "Superman", actually named Ultraman.  This earth is the opposite Earth: good is evil, evil is good.  So this Superman is a bad guy, and a member of the Crime Syndicate Of America.

And this is the Superman of Earth-23: Calvin Ellis.  I know nothing about him, other than he's a man of color.

POLT