Lemme add a little here ---
The Giles has a shorter length from the CG to the tail group.
Why?
the wing layout.
The Edge has a straight LE -do the CG is closer to the LE at the root
The Giles has a straight TE- so the CG is further from the LE at the root.
Your own choice of which plane is best, is usually based on appearance - just like topless dancers .
For stability -in a hover position - a model with the longest distance from CG to tail group -is usually better. (bigger is better)
If you actually intend on flying the model thru sequences as well as floppin and hoverin around- you may find that the Giles layout is a better compromise.
It has a better lateral fuselage area distribution than the EDGE. So potentially better in rollin and point maneuvers.
In either case - remember - BOTH are compromises .
And yes - I have flown the WH Giles /Edge and Extra.
All fly slightly differently -