Amane and Izayoi are still pretty good if you play against players that actually use them as their forte. I've played against really intense Amane's and Izayoi's and even Ruben saw. And he learned a lot from them, too. Like how to do 4k 2orb meterless.
Litchi on the other hand though took practice. And she couldn't really afford to drop it and pick it up for free, like some characters, because that rack gives her back problems.