Or are you asking whether jogging or swimming, biking or hiking is better. And again, better for what?

Elsewhere in the Forum I asked whether everyone was going their kegels. No reply.

Half a century ago there was a popular pauperback book in campus stores called "Sexercises," featuring, among other moves, "The All Important Pelvic Thrust." Lol. And then there is jelking (qv) and Tantra (qv).

Some of us get by, so to speak, simply by pushing ourselves away from the table and, occasionally leaping to conclusions.

Post Scriptum: The "best" exercise also depends whether you are asking about what is best for men or for women. And age is definitely as much as factor as physical condition. Rapelling (absailing) is not for everyone.