Cain's not perfect, just one of the best we have to choose among. A Romney pick for VP would leave me doubting his qualifications for the job. Romney is a terrible choice for VP. Better would be someone from the Senate who could claim foreign policy familiarity, or a governor who could claim government executive experience.
I think it could be Newt. I’ve heard Cain on several occasions call Newt “brilliant”.
I don’t think it will be Perry because I’ve heard Cain say enough negative things about Perry that I don’t think he’ll pick him. They just don’t see eye-to-eye on enough issues.