either straight QH or a bit of pony of the americas in there. I know paint is recognized as a bree of it`s own but to get the paint it`s almost always QH. The obvious give aways with your boy is the low set neck, short powerful neck, short sturdy back, and that tell tale square bum. The most common way to pick a QH out from other breeds is the bum, they have a sharp point of hip and a clearly square shape where as warmbloods and tbs have the sloping, round quarters meant for getting underneath themselves to propel upwards for jumping, dressage, and racing.
If something is not to your liking, change your liking- the only thing you can count on in this world is change. ♥