I like the mare, too. She is gorgeous and looks well balanced. Prosico has those long, thin legs, and Great Dancer has no hind end whatsoever. I'm sure that could be worked on, but given the choice between Great Dancer and Honey, I'd go for Honey. She looks the most suitable for H/J.
You should also consider how they are in person, too! It's like buying shoes online, they look great in the pictures, but do they fit? Good luck!