i have a general dislike for valks in general , so i guess it's up to personal pereference , but considering's sherry passive and her SAW , she outclasses both claudia and tethis in both combat efectivness and utility IMO....unless ofc you're facing a paralyzing boss. Buut that's a particular case. Generally speaking shery's better. As for claudia , she isn't a particulary strong duelist , and all premium princesses not named themis outclass her even at full cost