The hunting argument is silly - particularly deer hunting serves a vital role in population control, the animals are typically killed humanely after living in the wild, and the animals are used almost always for food (if not, then I condemn it).
The real hypocrisy is with factory farmed meat. If I could choose between being one of Vick's dogs or a pig on many factory swine farms, I'd choose dog any day. Many animals on factory farms know nothing but torture from life until death: at least some of Vick's dogs were rewarded for victory, etc.
I'm not saying that what Michael did was alright by any means, but what I am saying is that what he did isn't particularly worse than what pretty much every other NFL player (save for Tony Gonzales, a vegetarian, as I recall) does by eating factory farmed meat. I'm not sure how so many people can be OK with the realities of factory farming - it's pretty sickening, and I'm not some crazy PETA protester. I know there are many livestock farms that treat animals humanely, but there are also many that don't, and at the grocery store the consumer typically has no way of telling the difference.