If you're referring to the American breed that we call paints, that are registered with the American paint horse association, and a European warmblood, that's a bit of an unusual mix. Not saying it may not be a nice horse, but those are very different types and it's less likely that you'll get a horse that exemplifies either type. Colored warmblood do exist, but they would not be considered paint/warmblood crosses.
With such a mix of type, a lot of it is going to depend on the actual horse. Also a horse that will win in 2'9 hunters and one that will win in the jrs or A/Os (which are the 3'6 divisions) can be quite different. A winner in a 2'9 division is unlikely to be fancy enough to win the jrs and a winning Jr. horse may be too sensitive of a ride for the average 2'9 rider to manage.