The bay gelding seems to be a very lazy horse; he seems to always be falling on the forehand when being ridden. However he is a very nice built horse. He looks huge! ;)
The paint looks very nice, a thick sort of dressage mount and looks like she has some scope over the jumping.
As for the thoroughbred ; his neck is way out of proportion in his body. It seems to be too long or something. :)
Anyway Out of those three horses I would choose the paint (as much as I dislike paints ;) lol)
Hope That Helps!
"If you act like you've only got fifteen minutes, it'll take all day. Act like you've got all day and it'll take fifteen minutes." - Monty Roberts