as far as i'm aware, APSF has discontinued their white 15707, so you really have no choice in the matter. lol
but if you can get your hands on an APSF from back stock, i would go that route. apsf certainly has a better dial. the translucent crowns were from the first iteration and were updated. there have been silent upgrades to the APSF white 15707 and different dial variations. there's only one dial i personally like of the variants which i haven't seen in the wild for quite some time....the latest APSF dial me thinks is still better than the ZF, as the ZF looks a bit too plastic-y to me...