I think he rates them both roughly the same, he has always maintained that there is no official number 1 at the club. Of course Hart gets more game time but I think that is because he was already first choice when Pellegrini arrived and he probably didn't want to risk being unpopular by dropping a fans favorite. When he did drop Hart the media were whinging and moaning for weeks until he put him back in goal. If there wasn't so much resistance I think Hart would've been replaced by now.
Back away from the crack pipe. Just say no.