Have you tried using a new cord? I know sometimes my Note doesn't charge normally and I end up buying a new cord then it magically starts charging. I get my stuff on Amazon or eBay. Haven't had any problems.....except one time when I had to claim my insurance.
If youre between the 6 and 6p, get the nexus. It will be updated the fastest and is an overall great phone.
I strongly recommend a case for it tho. Its a sexy phone but one drop and the pretty finish will be damaged. For how much you use your phone, def get one.
I'm with Verizon and am considering the new Galaxy S7. My contract doesn't renew until August or so and I'm wondering I can trade my phone in or get out of the contract to order the new phone. I think the release date is March 11th and you can order one now.