Duelist skill enchantment - Whats worth it or not?

Not having bothered with skill enchants before i'm at a point where i feel it might be beneficial. I know there are plenty duelists out there who are plenty higher than me. So my question is as the title puts it i guess, what skills are worth enchanting (and ofcourse, for what option incase of 2 alternatives) and what skills should i never look back on again?

active skills (that you use) before level 76 should go to +9 for extra power or chance to land,

passives shouldn't even be touched,

skills past level 76 are usually very low chance to enchant unless your extremely high level (80+), but if u really want that edge then get them +3 :P

i think thats the general rule

sonic blaster should be first skill enchant imo. You use it the most in pvp

I would suggest sonic blaster and TSS, then the rest is personal preference, I did my aoes after that since they get used alot in sieges and pvp.