I would ask what rank they all are. If none are at least 4/55, I'd personally suggest waiting til you have the material to take one of them to that rank, cause in the time you take getting the rank up materials for a given champ you listed, perhaps you pull someone even more worthy of a generic gem.
Bottom line, in my humble opinion, generic AG are too rare to use on a character you're not fully invested it. You'd kick yourself if, for example, you used it on Captain Marvel, only to later pull one of the many incredible cosmic champs, but not have that gem available.
Just my two cents. Good luck with your decision either way.
Comments
CMM gains an indestructible buff when she goes into Binary. It's a nice-to-have thing, but not needed.
Bottom line, in my humble opinion, generic AG are too rare to use on a character you're not fully invested it. You'd kick yourself if, for example, you used it on Captain Marvel, only to later pull one of the many incredible cosmic champs, but not have that gem available.
Just my two cents. Good luck with your decision either way.