Something that hasn't been brought up is the engine response time. In a L1011 (I haven't flown one, but have a 747-200) the time to get the engines from a high power, high drag (and noise) situation is relatively low, with a GE 777 ( and other high bypass engines) it would be very significant and you would end up with a very destabilised approach unless you are both very good at it. With the 777 you can have FPA and track select and get a very accurate NPA, limited only by the accuracy of the charts.