I'm at the point where my contract is due and it's time to get a new phone. I got a Moto X (2014) and I like it, but the battery life is not up to my taste. I knew it wouldn't be superb, but I need something a bit stronger (or at the very least, one that'll go into the night with more than 50% with light-moderate use). What phones of this generation that are widely available (so no Droid Turbo) seem to be/are good calls for battery endurance? I'm thinking of returning the X for either the Nexus 6 or the M8. Thoughts?