[@Jones Sparrow] I'm starting to think that I would definitely want to do 2 or 3. I also realized I can take liberties with the age of X-23 since in the movie Logan she is gonna be a little girl. That way my character can definitely be 20 rather than actually being older.

Both options have big pulls to them for me. With Sabretooth people would highly likely know the people he is related to and would look down on him since both his father and his uncle who 'raised' him were both villains. And yeah I'd definitely be using the version of Sabretooth where they are brothers.

With X-23 I just really like the character a LOT and she is the clone of Wolverine so that would also make interactions between mine and your character either volatile, awkward, or just plain weird. Volatile would be because of how my character would see yours.