its best to punt the switch so ON is when you push toward the tail. this way if you gothrough some tall grass on takeoff or landing, or have a close brush with a tree (done it) your switch wont turn off. having on at the nose end is bad.
I use two standard futaba switches that are connected in parallel. they are mounted on top of my fuse in front of the canopy. on top, outa the way, and they are redundant. I have heard too many stories of failed swiches.

sean