Scenic Zipaloot was the best in the group, at least by pictures, although I couldn't see the last horse. I really like A True Rolex (I will one day have a foal out of him!) and would push you towards him if your mare has a performance background. I would study your mare's genetics for HYPP, HERDA, etc. Also, see what she is bred for. Crosses may not do as well as something specifically bred for a purpose. Hope that helps!!!