I don't main either colour - I'm a Light guy. My Darks are probably my 2nd best, but my Fires and Waters are decent as well.
My choices are Gaia, Acala, Ares, Brahma, and Ea.
My Winds have EASILY been my worst team thus far, as the only SSR Wind I have is Gaia herself, and even then I only got her because I decided to use a Miracle ticket just so I actually had one. That said, I did pull a Hraesvelgr recently so maybe they'll be a little better, but I still don't think that's enough to make a team of meh SRs worth investing in.
At the same time I pulled Hrae I also got Nike Unleashed, which probably makes my Waters pretty solid (Ashera, Nike U, Sarasvati, Ryu-Oh, Ea). So maybe there's a case to be made for improving Ea now.
What Wind SRs do you have? Sytry's decent, Cybele's decent, Krampus' decent, Oberon, Maeve, and Ramiel are all decent Wind Himes.
You have Gaia which will keep them alive and you have Hraes... that can easily move into a Wind main if you chose too. Like all other elements, you'll want SSRs, but you've got the most important ingredient already. Hraesvalgr.
And Wind can be fast, as fast or faster than Light...
Dejnov.
I just chose the ones that I thought were the strongest. However, you can leave them and save the eyes until a later date but Ea is not very useful compared to others. Would she replace anybody in your water team? Hardly.
Gaia can help wind teams a lot when they lack power.
Ares is pretty strong as well and while not as good as Uriel or Svarog she is still good.
Brahma is also strong. She gains a good boost when she is awakened and also has a vigour like ability on her burst. So, if you can maintain her HP she will also gain attack after burst. However, she is fast and a good tank while hits hard.
Ea gains little compared to other awakenings and just feels weak compared to a lot of them. However, these are mainly my opinions.
I do have all of those. Maybe my teambuilding (and weapons) just suck donkey dong.
Hmm. Was thinking that since it was an Ea weapon repeat it might be a sign to awaken her next, but for now I just went ahead and did Gaia to get her out of the way. I'll be back up to 3 eyes very soon, so I could do another one a bit later.
For Fire I already have Awakened Uriel, but no Svarog. I dunno who on my front line I'd replace with AW Area or Acala (AW Uriel, Hephaestus, Brynhildr, Mars), so I'm still iffy on doing them. Maybe Brahma will be next then since she's always on my Thunder team, even if I don't use 'em much.
Is there an exp chart of sorts for weapons so I know roughly what level I'll land on after enhancing?
Do you have Raphael? Her awakening is in about a month and is pretty decent if you use her - she gets a new skill that is equivalent to BP, making her the ultimate stalling hime.
If not, I would recommend Gaia as well, since she will likely be very useful in the next tower.