Definitely Kommo-o. Kommo-o has much better stats, and right now you need a special attacker, not a physical attacker. Although you don’t really need either, you could probably just sweep through the game with just Mimikyu, Kommo-o has 2 types that your team is missing, whereas Lycanroc only covers 1 type, and one that isn’t nearly as vital as Fighting or Dragon. Kommo-o also has a much more diverse movepool, and can run physical OR special attacks, which can come in handy quite often. One downside to using Kommo-o however, is the fact that it’s a serious pain to find, and you also find it fairly late in the game