Their cuteness is all encompassing.
I'd say overall yes.
I can't say who's the best scaled figure maker,
I mean I have three of thiers and whoo! They are nice!
But when it comes to chibi figures, Good Smiles are very good; maybe even the the best. (Too me anyway.)
Bandai has one as well, but they don't have anything I'm really intrested in (until they start with the Sailor Moon figures).
And as for Valkyrie & Maryan...
I've got'em pre-ordered...
Don't judge me!