Strength -I have to say Canderous. He's got implants that give him a huge edge over carth in this regard
Dexterity - Carth
Constitution - Canderous. Once again, the implants give him an advantage
Intelligence - Errr...tough call. I have to say Carth
Wisdom - Canderous's mandalorian words of wisdom give him this catagory.
Charisma - Canderous. He makes people listen to him.
Overall - I have to say Canderous overall.