well I've never wired a winch, but the switch should be like this:

12v in to center terminals
top or bottom out(in or out) to power the solenoids. 

or, if the solenoids are triggered off of a ground, you would run the solenoid wires to the center poles, and then out to ground from there.

I've never seen a switch with poles that go to what you say; a 6 pole (Double Pole, Double Throw) has center terminals for power in and top/bottom terminals to send the power (or ground) to.

yes I suck at paint.