These batteries are probably all made in the same factories, with the same alloying, and roughly the same electrolyte mix. The differences will be between the actual prime manufacturers, e.g. Enersys, C&D, JCI, Exide, East Penn, etc.
Alloys and electrolyte vary between prime manufacturers and by application, for agm vs flooded, SLI vs deep cycle vs UPS, etc.
While some are made into unique cases (like the white interstate), go into any parts store that carries the same batteries as another (e.g. Two stores that carry JCI batteries), and I suspect the cases are the same.
So I suspect that there are a few lines made by each manufacturer, a premium one with highest cca, a midline/value brand that is some compromise, and then an OEM grade, perhaps made to a lower price point but with some other specifics to ensure they get through warranty. Something like that.
One of the core lines might get the best x% sold to one vendor, the next y% sold to another, etc. manufacturers can determine impedance and capacity and "bin" the batteries, before sending them for decals and palletizing.
So I'd highly doubt that there's a ton of difference between any JCI battery at any store, other than how the store warranties the product after the sale.
Key is to ensure you're comparing apples to apples product lines when price shopping and feature shopping.
Also remember that weight is a good thing...