The first one looks like a stud to me too...and I doubt he's a registered QH with that coloring. He appears to be calf kneed and his shoulder is a bit upright. He's pretty straight through his hind end too.
The second does appear to be pretty long through his back, but that could just be the angle of the pictures. The thing that raises red flags to me about that one is that "he's got a lot of power" and the fact that the owner claims to be training him for barrels. That, to me, hints that he might be pretty hot blooded/chargey.
No way that sorrel is 16.3hh, even if the guy riding him is 6'3". I'd believe 15.2-15.3hh, but definitely not 16.3hh. That right there kind of makes me wary of the seller. I don't know...just a red flag for me. Posted via Mobile Device
First horse looks like he may be owned by a charro. They have a thing about tying horse's heads up like that. He looks like he would be a good horse, he may be hot if he is a charro horse but that would mostly be feed related.