A lot of people knock the All Purpose saddle, calling it a “no purpose” saddle that makes too many trade offs to be suitable for either dressage or jumping.
In some cases, that’s true. But you shouldn’t cross the A/P saddle off your list. Depending on your goals and the design of the saddle, it might be your most comfortable choice in a saddle. I often ride in my A/P saddle because it allows me to be balanced on the flat (and ride with a slightly longer stirrup than my jumping saddle but a shorter length than my dressage saddle) but still hop over small jumps. I find it very comfortable for hacking because of the compromises. In fact many foxhunters also ride in A/P saddles because they offer a good solution for riding that spans both flat and fences.
However, many all purpose saddles are designed either with a dressage tendency, with straighter flaps, or a jumping emphasis, with a slightly more forward flap. Which one you choose depends on how you like to ride.
I grabbed a few saddles from our barn to show how the different designs compare. Freedom is modeling the saddles but they are not all mine so some of them don’t fit him quite right.
I didn’t mean this to be a Wintec comparison but that’s what was at the barn on the day I was taking photos!
In conclusion, A/P saddles can be a good choice for you and your horse if you don’t want to jump larger fences and you don’t need to have a really vertical leg position.