Lot's of work on you part so thanks for that and the effort creating the builds.
I don't agree with your 1st comment about difficulties scaling and such, I've seen no clear evidence of this in the least.
Agree for the most part with your Legionaire build and Katari build, though I do use whirlwind at times and find it pretty effective in some cases.
I don't use evade for the assassin, I use shadowstrike which you are not a fan of.
Elementalist, I can't comment of the overall effectiveness of the build except that I hate Firestorm and fire wall. Part of builds for me are 'what do they do to team mates?' and both of those simply blind team mates. Vorcha flamer builds.
Keeper, I use the exact same build.
Alchemist, I only used poison for here when grinding the challenge. Otherwise I also use shadow strike for her. And my big ??????????????? is, no stealth?
Necro builds look fine, Reaver probalby good, i suck at being a reeaver.
Templar, I normally stick with blessed blades to go along with the bomba womba combo and shield bash.
Hunter, once again poison i find totally lackluster, spike trap i often use and leaping shot i use for both archers, good damage and gets you out of trouble.
I play a boring range AW and always take pull of the abyss.