1. Brand: Shortlisted to Sony Xperia Z5 Premium, Nexus 6p and LG V10
2. Budget: ~3k
3. Specs: At least 3GB RAM, with big internal storage if cannot expand external memory, must have LTE, 5.5" -5.7" screen size, fast charging is good to have.
4. What you need in the phone: Good battery life, good camera especially in indoor
I used to follow the mobile phones trend but these days I'm just too busy with my daily work and I don't have so much of time to do tweaking or even root my phone to make it work well. I just want it work out of the box.
I have been using Note II and then followed by Note 3 since its launched back in Sept 2013 until now. My Note 3 is still doing fine except for some minor lags which are still bearable for me. However, due to its age, I cannot deny it hardly holds battery charge as much as it used to last time. Obviously, the camera is also kinda sucky. Not in a rush to replace my phone but if there is a good phone I will not hesitate to change it.
I can still wait for 1-2 months if there are any upcoming good phones on the way.

For now, I shortlist to these three phones, I welcome any better recommendations.

can give you thought on Nexus 6P and LG V10.