I could easily live with masturbation over sex any time. But it is good to have a balance, neither all of one and none of the other. We are sexual creatures after all, remember.
That’s a hard one but I’m leaning towards the sex! I masterbate a lot but there is just no replacement for the feeling of a cock thrusting into you, making your eyes water and letting out uncontrollable moans. A dildo doesnt do that for me nor does it replace a warm body.