I cannot pick between the boys. They both have great qualties that, even though they are as alike as fire and water, seem to complete each other. To me, one without the other just doesn't work right so in essence I suppose you could say they make one cousin - The Duke Boys. If Luke wasn't there, Bo's temper would get out of hand and on many occasions we have seen him nearly fly off the handle despite everything Uncle Jesse tells him. Luke is his voice of reason, the level headed one with all the plans to get them out. On the other hand, if Bo wasn't there I don't think Luke would be as impulsive as he is. After being in the Marines where it must be hard to get out of doing everything in a strict regieme, doing things on impulse must be a hard thing to do. However, with Bo there you just can't help it. Bo never has a plan, he just goes ahead and hopes for the best.