I'd say King despite not talking much he does good for orphanage he also forgave his former enemy Marduk and they even became friends.

Victor is kinda grumpy but seems cool, Claudio is also pretty interesting character but lacks screen time to be to be seen in some situations, Hwoarang is just pretty annoying, Christie too and Katarina is like Claudio but even more she lacks personality.

King because he's so awesome 😎