Lol 4 piece EOSF is the best optimal choice rather than 2 piece tenacity.
You need the ER for her burst plus its additional attack bonus.

Optimal build for C1 Yelan is: Stringless Bow with Nobless Oblige (HP%/Hydro%/HP%). You need 60% energy from substats to burst every 18 seconds.

Accidentally my Layla HP build + abandoned Favonius bowR5 will be super very suitable for my future Yelan.
LMAOO..
Also i have Tenacity 2set HP with high CDMG unused, become usefull

Replace Flat HP by ER and you're gucci.

No one is "advertising" flat stats as the way to go dude, but not everyone can roll perfect stats, which is why those are listed, as substitutes until one can get a better piece to replace it.

Seriously, so some research and maths, and stop advertising flat stats as the way to go.
ANY flat stat is beyond trash and usuless, I rather have DEF% than ur trash flat HP.
Seriously, two google research on the maths formula of artifacts stats and you understand how bad they are...

Ouh a fangirl (or boy) is ****ed because her/his favorite character isn't scored as SS.
Go cry more in the corner.

Tier lists like this is nothing. Ultimately you go with whichever char you enjoy the most. Period.

I’m wondering about the comparison to Ayato as well. I have him, so not sure if I should pull for Yelan or wait for Kazhua.

Why would she be considered SS? I mean Ayato does decent damage and is srsly listed as S?
Lol the way all these characters are "Listed" is ridiculous...

Max Qiqi out for physical damage, use her skill after Yelan's burst and start freeze slashing till your hearts content.

Yelan + Raiden make a great team!

Maybe 28K~35K its already good enough

Maybe someone can tell me how much HP she need for maximum dps

It looks to me like Yelon was made for Hu Tao as a Xingqiu upgrade.