Hay all ive just about finished my wyche cult list however im doing 600 points and need some opinions on which hq is best

lelith hesperax i'd say

strengh 6 hair
4+ invulnerable
3+ if in combat
etc.

I'd still go for an archon w wych weapons with a squad of them in a raider.

But lilith is insane... It's up to you tbh

lilth is insane but its a 600 point battle