This is one of those arguments that could go around for years and years.
The only time that I ever used QFE was when I was a guest of Her Majesty. Otherwise I agree with IO540 that QFE is a distraction and about as much use as a chocolate kettle.
Try setting QFE at Nairobi, Addis Ababa or Asmara!
I have done thousands and thousands of precision let downs all over the world using QNH.
My only regret is that it is difficult to find an airfield in UK that is prepared to give the QFF. Now that is much more accurate!