Notso:
I am not trying to be cheeky here, but loss of oil in one engine may not be an instance that is confined just to one engine. Remember the EAL L1011 that had the oil changed in all three of its engines by one mechanic, who forgot to reinstall new O-rings on each of the engines' drain plugs. Low oil indications in one engine were quickly followed by identical indications in the other two.
I am also confused about your statement that you are happier on a 3-engine 747 than on a 3-engine DC-10 or L1011. Can you explain why you think the former is safer?