Wow, lots of responses! Thanks guys. When I originally posted the thread, I was using stopping power to describe "maximum damage inflicted in a single shot."
All 3 calibers will have no problem dispatching a human, so for home defense, all three are good choices. My question was more academic I suppose.
A better question to illustrate the academics of it is which of the three is most likely to fell a bear in a single shot? We aren't talking .44 mags here btw.
Also, I should have known before posting this would be a Chevy vs Ford type debate. Wasn't trying to start trouble haha.