Shall I buy Z2 or Z3+ ??

Guys, would you help me deciding between both phones? I am coming from Xperia SP :D

- Z2: What I like:
Better design -for me-, better price, larger developmental community/more better future custom roms, larger battery..
or
- Z3 Plus: What I like:
Better front Camera/Dual Sim/more predictable official updates/better waterproofness/more over-heating issues..

I don't like Z3 :// :D

you may help me If stated new or neglected something in the comparison like: the front cameras don't differ too much, or Z3+ is not expected to receive Android N or expected to grow large custom roms community like Z2 (I don't think so) :D etc..

Thanks a lot :)))