Vaylin is about Vader level as a Force user, mid-high council tier as a lightsaber combatant and Dooku level as an overall combatant.
Senya is about TPM Maul level as a lightsaber combatant and about that level as an overall combatant.
Edit: Just read the fight between Vaylin and Senya. Would place Vaylin at around Qui Gon's level as an overall lightsaber combatant.
Senya can stomp a bunch of fodder and has a lot of experience, so she's about Kas'im-level in skill and Force augmentation. Vaylin is a bit below PoD Bane-level in skill and Force augmentation, due to her being inferior to Senya in skill and not being strong enough in the Force to beat her. So I'd say both of them are high-level fodder as overall duelists.
Senya is an average Force sensitive, maybe a bit above. Vaylin can do a Force Maelstrom and ignite flammable objects with Lightning, as well as crush massive buildings with TK. Solidly below Dooku, but she can compete.
Overall, Senya's slightly above average, maybe Kanan-level overall, and Vaylin's about AotC Anakin-level.
Originally posted by Azronger
Senya can stomp a bunch of fodder and has a lot of experience, so she's about Kas'im-level in skill and Force augmentation. Vaylin is a bit below PoD Bane-level in skill and Force augmentation, due to her being inferior to Senya in skill and not being strong enough in the Force to beat her. So I'd say both of them are high-level fodder as overall duelists.
Originally posted by Ursumeles
LMAO
Ant posted it hours ago ^^
I'll rank them after reading, but Vaylin seems a Bane/Dooku Tier force User as of KotFE(+ as of KotET), with more raw power, but less mastery.
They wouldn't even register on Valkorion's radar and he felt it necessary to suppress Vaylin's powers. Don't post mindless garbage.