First of all thanks for great effort of writing this guide. It really is very useful to new hoxes.
However not really fan of your pvp specs. Possession one is not ideal but it can work. I mean possession can work even if you forgot to spec 5-6 points at all
Still i think you should have taken magic dmg and etra range on pillars from general.
Avatar on the other hand is very bad pvp spec. No searing hatered? No molten flesh? Charge over combat rating as avatar? Wrath of xotli, ye sure you can do without but still with stun as it is now it might be better choice than horrible visage. And recommending enslaving fire for avatar? You loose so much if you pass on rsox as avatar.