Difficult question because I always have strongly pointed out that you simply can't compare bunq to any other bank. And that is exactly why I love bunq. Does that make sense? :)
If I set aside the whole emotional aspect and bunqs price model, I choose bunq because of:
1) The 25 bank accounts. I find this very helpful for managing expenses.
2) Connect functions. I almost share all my accounts with my wife and vv.
3) Freely and instantly assign your card to any of you accounts. And let's not forget the dual pin option. This makes budgeting even more effective. For instance, I bought some holiday gifts for my nieces and nephew using a bank account which we created in order to set aside money for them :)
4) The top notch app which makes every feature extremely simple to use.
5 The top notch customer service.
So that were some examples of why I find bunq better then N26. For me N26 does behave bit more like a traditional bank.
Hope this helps.