I'm going to sound like an asshole for my answer, but it's gotta be Amy from Messygirl. One, she is my favorite model of all time. Two, how much she hated it was such a turn on in regards to the humiliation factor I enjoy in wam.
Darla's one I really enjoyed. Just a good build up of lots of layers and big quantities of mess. Just a blob by the end and hard to remember there's a person under there as the mess just kept coming and coming. Great stuff!