Which would be better depends on your safe and where you keep your safe. If you buy a safe that has the precuts for the Golden Rod, and have a closet with an electrical outlet, I think the Golden Rod would be better. However, if you're not blessed with a prewired closet (and don't want to keep your safe out in the open), or if your safe doen't have cutouts for the wiring, the desicant works well.
My dad runs a dehumidifier in his basement and keeps a couple of bags of desicant inside the safe.
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Guns cause crime like spoons cause Rosie O'Donnell to be fat!
I hunt, therefore I am.