For comics, is it better to focus on a few heroes or a large team cast?

I was thinking of simplifying the cast of my comics to focus on just 2 or 3 characters at a time. Each character might even have their own comic, instead of one comic series about all of the heroes working together.

Which approach do you think would work best?

I think a tighter focus on 1 to 3 characters at a time makes more sense, which means I'm going to need to start my stories all over again, because I've gotten too many super-heroes on the heroes team now to keep a good story about them all going.

What do you think about this problem?

For comics, is it better to focus on a few heroes or a large team cast?
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