ORIGINAL: gboulton
I think your list is perfectly suitable. While there's 1-2 things on there I, personally, might do differently in one of my own airplanes, there's nothing on there that i think will give you problems, or create an unsafe situation.
And I agree with Andrew....I think either of your two finalists will be a fine choice for an airframe. Like Andrew (admittedly, on the other end of the scale) I can't say I've ever heard a bad thing about the AW birds, and can vouch for the excellent quality and support of WH birds. I'd wager you'll have great success with either.
I WILL offer this insight...and it absolutely falls in the 'for what it's worth' category. This is an awfully subjective viewpoint here, but here it is:
Your choice of airframe might just come down to some specifics of what you like in airplanes...specifics that have nothing to do with brand name, but instead are related to the airplane being modeled. By their very design (owing largely to the sweep...or lack of it...in the leading edge of the wings) the Extra and Edge have certain characteristics that differ from each other.
Extras tend to be "snappers"...and I don't mean this in a bad way. They tumble with ease, start and stop snaps very crisply, cleanly, and precisely, and are widely regarded as the superior "precision aerobatics/IMAC style" airplane of the two. They do not, however, tend to be quite as stable in high alpha situations (harriers, for example), and tend to want to rock the wings a bit and fall off to one side or the other when stalled.
On the flip side, Edges tend to excel at high alpha stuff. Harriers can be flown at ridiculously slow speeds, with no evident wing rock. Stalls are frequently very gentle nose-down and we're flying again events, and the airplane is very forgiving of "mistakes" in these attitudes. They also tend to be very crisp and precise in rolls. Unlike the Extra, however, snaps can be pretty sloppy, if not downright impossible to start and stop cleanly. The edcge is not an airplane that likes to tumble, and it'll whine about it if you ask it to. For this reason, it is frequently seen as a poor choice for precision routines requiring clean and precise breaks.
While my own personal experience (a .40 sized Extra, .60 sized Edge, 50cc Extra, and 100cc Edge) has roughly followed the descriptions above, those are VERY general "traits" of the two airframes, and any particular airplane, pilot, manufacturer, or airframe may minimize, enhance, or eliminate some of those traits. I present them here merely as starting points for discussion and research on your part.
As they say, YMMV.
