Ehm... If these are the options: Beef. ^^ It's very nourishing, and tasty!
Of course; it has to be red, because.. Grey meat is a life wasted. (No nourishment, no flavour.)
I like fish, too, for about the same reason. Most fish, like beef, are packed with vitamins and minerals.
Don't like pork or chicken, that much.. It's not as tasty, and it doesn't really sate well.. Again, because of nourishment.

If I had to pick my absolute favourite corpse, it'd be veal.

It's just so... Full.

As for vegetarians disliking people who do eat meat: Ehm.. Well; that's just hypocrisy, really, and it doesn't get you anywhere.. At least we eat more healthy, and humans, by nature, are hunters first and gatherers second.. So yeah.