I don't know, after getting screwed by AT&T who kept sending me bill after bill long after I had left, and dealing with their could-not-care-less human customer service, I think I'd have a really hard time deciding which I'd prefer. I think the evilness level is going to be very dependent on each situation.
I've never had a bad customer service experience with a phone company, cable company, etc. I believe others have, but I'd rather take my chances not being an outlier customer service anecdote with them than rely on Google where customer service isn't an option period.