Plotter or Pantser?

Seems there is a hot debate on what is the proper way to go about things. I know plotters who swear they can't write a single word until everything is mapped out. Likewise, pantser could never make it through a story they already knew the details of. 

When I first started writing, I took all sorts of writing classes that said it was imperative you plot everything down to the last detail so you didn't get lost along the way. On my second book attempt, I followed this advice to th...