I prefer to use letter grades:
The Book of Mormon: C+ (fourth row center mezzanine)
Chicago: It's been a solid decade since I last saw it, so I don't think I can accurately grade it. When I last saw it (in April 2007, with Bebe appearing as Roxie) it was a B.
Dear Evan Hansen: A (seen multiple performances, locations ranging from fourth row center orchestra to last row of the mezzanine)
The Glass Menagerie: D+ (second row mezzanine)
Hamilton: B+ (second-to-last row mezzanine)
Jitney: B (front row mezzanine)
Kinky Boots: C- (mid-mezzanine, don't remember exact row)
Natasha, Pierre, and the Great Comet of 1812: B- (onstage seating)
The Present: A- (first row of the rear mezzanine)
Waitress: B+ (rear mezzanine, near the top)
Wicked: Again, have not seen the show since its first year on Broadway. Back then, I'd have given it a B+/B.
"You travel alone because other people are only there to remind you how much that hook hurts that we all bit down on. Wait for that one day we can bite free and get back out there in space where we belong, sail back over water, over skies, into space, the hook finally out of our mouths and we wander back out there in space spawning to other planets never to return hurrah to earth and we'll look back and can't even see these lives here anymore. Only the taste of blood to remind us we ever existed. The earth is small. We're gone. We're dead. We're safe."
-John Guare, Landscape of the Body