Do you prefer your water bottle to be made of metal, plastic, glass, or something else? Straw or no straw? How big would you want it? Should the bottle taper down in the bottom, or do you think the sided should stay vertical? Are any of you one of the few people who would like that weird rectangular bottle? Or maybe one of those squishy fold up ones for travel? No handle, flip up handle, mug style handle, or little loop?
Note that I am not affiliated with any water bottle company
I recently picked up an Owala 40oz that tapers to fit a cup holder. Stainless with double wall insulation. Lockable lid. Replaced the plastic straw with a stainless one. Having the option to chug or suck on a straw is really nice. I just wish the lid and mechanism for drinking was also stainless instead of plastic. I also prefer a paracord handle that detaches on one side so I can attach it to a bag instead of the ridged attached one.