Thales FMGC2 wins hands down. It does everything that the honeywell does & so much more:
Creates temporary flight plan for every modification with insert/eras options.
Abeam points available with a direct to.
Will calculate the "Equal time point" on any route between any two points. Very handy when en route diversions are few & far between. Accessed via DATA key & 6L. Defaults to Origin & Destination unless modified.
Will allow you to draw radials from any waypoint. Accessed via lateral revision at from waypoint or destination via 5L.
Will allow you to create "Place Distance" waypoints a user defined distance before or after any way point. type ref waypoint name then / followed by +/- nm before or after (eg 30nm before LAM type LAM/-30) & insert in flightplan.
As previously mentioned provides much more comprehensive evaluations of step climb & descents by allowing different winds to be inserted at different levels. Also gives the fuel/time saving or penalty before the change is inserted.
Will give a list of nearest airports with nm & time & very cleverly includes the track miles & time to loose your altitude. Accessed via DATA key & 5L.
I'm sure there are others that I can't remember or don't know about!