best budget battery, advice?

[cfan10]

Autozone won't exchange my duralast gold, batt is almost three years old. Eight year warranty is bs. They actually want me to put the difference for another bs batt.
But, I digress any suggestions on a batt at/or under $100 please, no sears diehard gold had that in my malibu
Anyone using interstate in their square? Thanks.
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