Honestly I don't like either, I'm sorry to say.
The bay has a short low neck set, a very short back - saddle-fitting nightmare - tied in at knee, but good bone and decent feet. He is uphill. If he's really 15.3, that groom must be 7 feet tall
The chestnut is quite nice until you get to those legs, especially the front ones. Over at the knees, very tied in behind, and awful feet. Left front fetlock is puffy and he looked off in the video. Shame, really - kinda like a Ferrari mounted on wagon wheels.