I seem to have my best scores with Han (6.3 bil PB so far), maybe those have just been by chance though. Gotta go with Han anyway though.
Btw, with Luke I believe one of the rulesheets I've read mentions Luke getting an add-a-ball ability once a ball. How does one lite and use this? The only add-a-ball I've found is just the standard available by hitting the Force targets during a MB. Is it just that it is easier to lite with Luke - so far it's felt that may be the case?