Quarter horses I love the breed and my sisters quarter horse will jump anything you put him up to
Thoroughbreds or anglo Arabians can be good fits as they have great stamina for XC, but they aren't always a beginner ride and can have a hot temperament.
Another very honest and suitable breed would be Irish Sport Horses, which make up a lot of higher level eventers.
Thoroughbreds, all of mine really like jumping and XC except for one and they are all really nice to handle and ride ( even off the track thoroughbreds are great horses)
Thoroughbreds. I know some people wouldn't go for them as they get quite hot and really excited and want to go but I know that they're are good jumpers.