It's final now if it ever was. The Eb for me is the way to go. maybe it's just the Basses I have here i am judging this by but the Necks that I like playing most are Eb or close to it.
Currently I am playing 'only' my English 'Hart bass which has an Eb Neck. I had put this Bass aside do to the slightly wider shoulders but not that I've gotten a bit more used to it, going back to a smaller shouldered bass with a 'D' neck sends me right back to the Hart. It used to be the other way around but things are a changing..
By the way, on this Eb neck, with proper hand position with my Thumb opposite the 2nd finger, my 1st finger plays the 'D' while my 2nd is on the Eb.