Re: "And, sorry, don't hate me, but I'm not reusing anything like a gatorade bottle. Those plastics break down over time."
Hate to tell ya, but Nalgene bottles also break down over time. Several have left me in a pickle with only one bottle when my other cracked open. So I carry a foldup softy as backup. In some places, like Colorado's Cochetopa, it's only safe to carry a good supply of water.
Mueller makes a nice liter bottle that is half way between soft and hard. The brand found in Walmart, Mainstays, also makes a 26 oz hard bottle that comes with different shading, and has grips molded into the side. The cap sticks a little, though.
I still like the Planters peanut bottles the best. They come in both 26 and 32 oz, and have convex sides for easier holding. And they are the lightest I've seen. Not for those allergic to nuts, however.
The reason for the slightly soft-sided bottles like the Mueller and the Nalgene soft-sided version of its hard sided liter bottle, is not just that they are an oz or so liter than the hardsided versions; but also, because they can be squeezed to use to backflush a Sawyer mini. If not for that, I would use the Planter's, because although I cannot eat nuts for other reasons, there is no allergic reaction and the Planter's are the lightest and easy to grasp.
All the above mentioned are widemouths.