I feel like SM will use their talents really well but JYP might be best for them mental health wise. JYP is known for treating their idols a bit more fairly and letting them take hiatuses.
We all know SM is so shitty when it comes to scandals, and they are rumors of trainees being forced into cosmetic surgery. Along with the trainees being REALLLLY overworked. So after HYBE Idk if health wife SM is the best for them.