The comics that inspired Arrow (or Green Arrow in general)

Except that by the time Superfriends started to air, GA had already been given his standard personality. (Though if he had been on there, it would likely either be heavily flanderized or surgically removed.)

Yeah, but had the animation writing team gotten the memo? They didn't seem to start doing the barest bones of their homework until Challenge, and later more intensively with Galactic Guardians.

I think the political-ness of the Arrow would have been too much for a kid's show like Super Friends back then.

The personality of the characters wasn't a concern for the makers of the Superfriends cartoon. They would have chosen who to include for reasons like popularity, character design, how easy it was to animate, how cool their powers seemed.

My experience of 60s Justice League also indicates that most of the characters didn't have much individual personality. I'd suggest that a lot of it is merely down to what you expect amas a reader with modern knowledge. If you told a non comics reader that Flash was really impulsive and Hal very laid back and had them read 60s JLA, I don't think they'd find evidence to the contrary.

Why did Mort Weisinger create GA when he already had editorial control over Batman?

Because he could?

Money is the answer to all those sort of questions. If the kids'll buy one comic about Batman, maybe they'll buy another one with a Batman clone. Meanwhile, their parents might say 'oh come on, that's ridiculous' if the kid wants two Batman comics, but with the two different characters maybe that effect wouldn't be so bad.

Did he also create Aquaman for the same reason (in regards to Namor)? He seems to have been a little more successful with that, since Aquaman is more embedded in public consciousness than Namor is.

Aquaman is DC, Namor is Marvel.

I know that, but did Mort intentionally copy Namor?