What is it you want to see in your phone, what features does it have to own, how does it need to be designed on the outside, which materials do you want to feel, which shapes, colors to see.
It would look like either the Xperia Z3 with 32GB internal storage, a 20MP with OIS and Qi built in, or the Moto Maxx with a IP68 waterproofing and a 20MP with OIS.
Lumia 920 style fabula design, but a little thinner body with larger display. The Lumia 1520 has ruined me, can't go smaller than 6" anymore, but maybe 5.5" / 5.7" is fine.
Lumia 925 / 1520 body shape is my second choice, but 920 is the most beautiful phone ever designed, the quintessential Lumia design.