I rate albums to use the rating for my filter "Album Rating > 80". So I show my "Top rated albums" with more than 4 stars.
Sometimes I rate tracks that I particularly like to show them in a my Auto Playlist "Top Rated Titles": "Rating is greater than ****"
Ever increasingly I do not like the whole album but 1 or 2 tracks of it, I can find them rated in my playlist "Top Rated Titles". It it useful because the album does not appear in my filter "Top albums".