The Brain: This is a tough decision. I would either pick Warren Buffet, the current wealthiest man in the US or the brain from the PBS kids show Arthur. Both seem like very sufficient picks and very outgoing.
I think it's really important to surround yourself with people who will empower you, will be loyal, and add a new perspective to your life. Unfortunately, finding these essential people is the hardest part.
I think the Hustler's point, in dealing with businesses, is that you're only as strong as your weakest link. Being able to delegate responsibility to everyone is very important because you don't want someone lagging behind...