I mean it could take forever to pull AA or Wolvie. X-23 is definitely not a bad option. Great damage output plus the Regen is pretty decent as well.
While I agree with you that AA and Wolvie could take long to pull, X-23's signature isn't necessarily the best. All it really does is increase crit chance, which, although useful, is not as useful as AA's sig is much more useful, and worth waiting for. You can continue to use X-23, but don't use the awakening gem on her.
NC is a decent attacker when duped. But he is a defender. An AG on NC hurts his ability to defend. X-23's damage output is only marginally improved when duped.
Comments
While I agree with you that AA and Wolvie could take long to pull, X-23's signature isn't necessarily the best. All it really does is increase crit chance, which, although useful, is not as useful as AA's sig is much more useful, and worth waiting for. You can continue to use X-23, but don't use the awakening gem on her.