I believe that the British Military attempted to align with the civilian work in the 1990s by changing from QFE to QNH but, correctly in my personal view, reverted back to QFE. The issue about which system to use is really down to culture and culture change is challenging due to cognitive recognition. However, having operated in QFE and QNH environments for approximately equal amounts of time each, when correctly using SOPs the biggest ground proximity waning ever is an altimeter approaching zero, you do not need EGPWS call outs. After 45 years of aviating in both environments my vote is for QFE.
MM