Well, let's see:
Quentin is good for fun & one night stands. I wouldn't plan on any long term relationships with him.
Barnabas could be, and I say COULD BE, a reliable good friend if you were in need & in his good graces. Otherwise, you'd be left in the lurch.
Roger is too uppity for me. He'd have the resources but his personality would turn me off.
I should pick Willie but I don't need to mother someone.
My choice is Bob the Bartender! He has his own business, he's his own boss, and is quiet & seems reliable. That's my choice.