Is X-23 better than Wolverine

Answer 1

The answer can go either way, depending on if you mean power wise (e.g. senses, healing, speed etc.) or if you mean as a character, which is more of an opinion.

As X-23 is Wolverine's "clone" or "genetic sister" they have the same ability's, power wise, yet in recent issues of "Messiah Complex", X-23 commented on Wolverine's healing factor, saying "You heal too slow." to which Wolverine replied "So you keep telling me." which opens up the possibility of X-23's healing factor being faster than Wolverine's.

Combat wise, they are both very deadly, although X-23 was trained to kill since she was born.

Personality wise, they are both very different. With Wolverine more understanding than before and X-23, killing with no remorse and rejecting any feelings she has. It is a matter of opinion which is better personality wise.

The finally answer is what I began with, it can go either way.