Let me hit you with some anecdotes. I regularly disparage both Apple and Google in my comments, typically Apple for being user-hostile and lying in marketing and Google for being incompetent and user-hostile. My Apple comments get downvoted more than my Google comments (I'd guess due to fanaticism that I see with no other company), although the gap has been steadily closing.
Well, today I learned that it was possible to go to -4. But I'm not sure we can tell anything from that really, just that there are a lot people who (a) don't like apple, and (b) are sure they are in the minority rather than the majority. Which is a bit contradictory.