The "craft" of mastering has not been around long enough to form a favorite. One that consistantly does quality without smashing is Bernie Grundman.
Transparent transfer in accordance with artists wishes.
Some do great for a while and then "blow it" so therefore, my stance is that since we don't hear the premaster, how do you know whether the mastering engineer made things "better" or "screwed them up?"
Unless you get to hear the mixdown and then the actual final, you are pissing into the wrong end of a fan. You are guessing, unless you are the artist, the mixdown engineer or a quiet observer with knowledge of both the mix and master.
Consistantly, Bernie G has not presented any eggs that I know of. As for his satt. offices, I withold comment.