Best deep cycle ?

Of all the batteries offered at the Sears site, these are about the only two models I'd want in our RV:

http://www.sears.com/diehard-platinum-marine-battery-group-size-31m-price/p-02850131000P#desc

http://www.sears.com/shc/s/p_10153_12605_SPM6012174501P?clicked=true