This is Black Panther's fight to lose. Unless X-23 finds the suit's weakspot magically i n few seconds, she isn't cutting him. And since she is much inferior in strength, her physical blows won't do much to T'challa without the suit, let alone with it. Add his claws and energy daggers, this is T'challa's fight to lose.
50/50 split or slight edge to panther IMO.
Laura is often portrayed as being slightly faster, more agile, and uses skill more often than wolverine. We've already seen panther and wolverine fight and niether of them have ever really managed to put the other down. With that said, panther has never used his gadgets against Logan and he's gotten some serious boosts (so Laura's speed and agility is ultimately cancelled out). Panther's going to have a tough time putting her down (what with the healing factor and adamantium covered bones) and Laura's going to have an equally tough time (since panther knows what she can do and is actually using gadgets).
Also, it's been a while since I've seen a thread where both characters are getting equal rep. I'd almost forgotten how refreshing it is.