I think The Don would use cheaply made products from China to clean my house, so I'd rather he didn't do it. Plus, his hair is pretty gross, so I'm not sure he understands aesthetics very well.
I think that The Hef, in his prime, might have fetched a pretty penny; however, in his current state of oldness, he would probably turn off most of his potential clientele. If he had some kind of brochure to explain his experience it might work better.
I would not hire W to theorize on physics because his background seems to demonstrate that he is more inclined to make his own rules than to demonstrate any true scientific inquisitiveness.