Non-whales: what limited personal LCs do you have and do you regret getting any of them now?

I have 5:

Seele's: Much like Seele herself I can't say I regret it because she carried my ass for like the first year of the game. Conveniently enough it's BiS for Hunt March now so I can still use it, too.

Jingliu's: The only one that is functionally useless for me now unfortunately. Still not sure I'd say I regret it since Jingliu was so good for a while but I certainly don't need it now.

Topaz's, Ruan Mei's, Acheron's: No regrets at all.