I would agree that Consumer Reports rarely, if ever, reports anything accurately. I quit even looking at it after I found that they regularly rigged tests.
As for the Optima batteries, I have one in my Sami and I had one in my last truck. I chose the Optima because their design allows them to be much happier after being jostled around while wheeling than the typical lead-acid battery. In fact, I replace the Delco in my last truck with an Optima because the Delco was leaking.
I will not hesitate to put Optima batteries in the Ram. In fact, they are on my short list, right after some real offroad tires.
By the way, here in the desert, the typical lead-acid battery rarely sees more than three years of service because the electrolyte evaporates out. Before they "maintenance-proofed" the batteries, I alway got at least 5 years out of them. So I by the cheapest battery I can find (usually at WalMart) for my cars.