Which charger for Nexus 6P?

[AC Question]

There are three chargers for Nexus 6P on PlayStore - 15 watt, (shipped with phone), 22.5 watt and 60 watt. Given no cost, which is best and fastest?

 

[hallux]

I believe the phone will only pull 15w, even if the charger will supply more than that.

If you're going to spend that kind of money on the charger, grab one of these and a C-C cable (or use the cable that came with the phone), then you can also use it to charge USB-A devices. I have this charger, it charges at full USB-C speed for the 6P.

http://www.amazon.com/Anker-Charger...ag=hawk-future-20&ascsubtag=UUacUvbUpU5117983