Ugh, if both of these categories disappeared from existence, I would not be upset. But if i had to choose, I'd choose hospital. I really hate police and legal shows with a passion. Hospital shows are not my favorite, but I do watch Grey's, in that begrudging "I started it, now i have to finish" it way, even though I am convinced the writers hate the viewers and want them to suffer. I liked Scrubs, but that was more of a comedy than a drama.
Still, I'd rather watch an hour long bowel movement than a police procedural show.