Rachel & Momiji are the easiest, have you seen my tutorials? https://www.youtube.com/playlist?list=PLV4Z7LoRwodA0Boq1N9kJpiELxNBjF38N
I've seen that they're there, but i'm really lazy somewhat to keep practicing until a decent spot, probably one of the reasons i keep trying a bunch of characters. I need to change that, in all Fighting games i play.
i ll say choose only 1 for the time being and stick to it otherwise your muscle memory IS going to get messed up . im saying this from experience.