I think they are really the same battery. Just some marketing issue. Like one chain store want's to be the only one that carries the "nautilus" version or something like that and pay Exide a few bucks to create a version just for them.
I just bought my second one. The one from three years ago is still strong on the travel trailer, but I bought a canoe and trolling motor and bought one for that. I can't complain about either one. They were a very reasonable price at Menards and so far, so good. The trick with getting the most out of any battery is to keep it topped off all the time. I have the same battery in my cub cadet riding mower now for 7 years and it cranks the snot out of my motor when I turn the key. And it was a cheap $25 Blains Farm and Fleet battery. The original battery only lasted two summers. When I replaced that, I started keeping it on the battery maintainer between uses and during the winter.