Sears DieHard Platinum, which I believe is made by Odyssey. Not cheap, but extremely powerful and able to withstand repeated deep-cycling by parasitic loads in vehicles that sit for long periods of time. Here in Iowa, cost is of no concern when buying a battery - you buy the most powerful one you can find. I will never again use a "flooded" type battery in any of my vehicles. Who wants to clean corroded battery terminals at -20F? Been there, done that - never again. BTW, the very first AGM battery I bought in 2000, an Orbital, is still going strong! Fifteen years!