Originally Posted by
Drip
Gold units with same or higher ATK as Edelweiss (4400, dual target):
Peach, gacha reward, 4500, single target
Oxalis, gacha reward, 4500, single target
Star Lily, event reward, 4500, single target
Japanese Iris, gacha reward, 4400, triple target
Of those four, Japanese Iris would be the only one I'd consider "better" than Edelweiss.
Peach and Oxalis more or less on par, mainly due to Edelweiss her relatively low skill activation.
Star Lily just below Edelweiss due to her first passive only buffing one random other squadmember, while her second passive is at "half strength".
Every event girl coming after Mountain Lily is relatively "nerfed" compared to 5* girls coming from gacha. Sometimes by ability, other times by lower stats.
Lavender, Edelweiss and Mountain Lily are as good as it gets for event girls.