So in this doc, I found a really in depth guide on general knowledge, stat weights, and rotations(I say rotation, but its more about comparing shock values) regarding enh. Any questions you other enh may have out there that you're struggling to find, you may find here.
Keep in mind this is from the when BC was current, I'm not sure how perfectly accurate this info is regarding the server we're currently playing on, but if its just a copy paste from old TBC like i think it is, it should be a pretty deathly accurate guide.
I take 0 credit for any of this information this is just for those who may not have stumbled across this site while digging for info. A link to the actual website is in the doc, the doc itself is just raw stat weights(I saved this for myself). For any interested in rotation/theory crafting. I'll add another link to it below if you're more interested in that than your preferred stat weights at different gear break points.
Hopefully this helped some people out. <3
Also if you're looking for weights regarding pre t5 from the docs, it can be found in the actual guide linked at the bottom in the original post. I will say though, the weights don't vary that much. In short, the more gear you have the less crit matters, the more haste/hit rating matter. That said its still only slight decreases and increases, most notable increase being with haste rating at higher gs.