I jump 1m-90cm with my Belgian Warmnlood but he can go higher.
The last one is around 1m30
I just love the temprament of my Belgian.
He's so careful and relaxed and he really LOVES jumping.
You just feel how happy he gets when he sees a jump and he can take it.
He's relaxed and does freak out at weird fences.
For awhile I rode at a barn that had grand prix jumpers, they were all hanoverian, holsteiner, oldenberg, irish sport horses, selle francais and belgian warmbloods. The belgian warmbloods were absolutely insane jumpers, they jumped anything. We leased a selle francais there and he was an amazing jumper and he was NEVER lame or sore. None of the horses really had any lameness problems and they were jumping 4+ feet and showing every weekend. I also rode at a jumper barn that had mostly tbs and they were lame all the time and none of them were even jumping higher than 2'6. Nothing against tbs but I wouldnt get one for strictly jumping. But more than the breed, it depends on the individual horse's confirmation, training, and personality. You can't just get a well known jumper breed like belgian warmblood or hanoverian and expect them to be a great jumper right out of the box.