Hammer fired. I like to be able to block the hammer using my thumb when reholstering.
I carry a Walther PPS. The striker extends out the back of the slide as a cocking indicator many owners place their thumb over the hole when holstering. It will not prevent the gun from inadvertently firing, but you can feel the striker pressing back if the trigger is being pulled.Lik. It wile noters, no real preference.
But, if you carry aiwb, it could be a comfort to place your thumb on the hammer during reholstering.