I've been in aviation over 30 years and I only heard the definitive answer to this a year or so ago. It comes down to our nautical heritage from which we get pilotage and navigation. Pilotage is what pilots do - they guide ships in sight of landmarks that they know well - coming into harbour for example. Navigation is what navigators do - they guide ships by dead-reckoning when out of sight of land.
Applying this to aircraft: pilotage is a posh word for 'track-crawling' - going from one known feature to another, looking at the ground at the expense of lookout and flying accuracy; navigation is flying a plan with check features every 6 to 10 mins to allow you to refine the plan which was based on dead-reckoning, either mental or using a whizz-wheel.
I guess it's fairly obvious which method of nav I think is the best!! <img src="smile.gif" border="0">