This may seem incredibly obvious, but I have recently concluded that 1:3 is not my scale. Even though I have several 1:3 scale BJDs, they represent a deviation from my true interest, which is 1:6 scale.
I should just stop buying 1:3 scale BJDs.
Anyway, my interest in 1:6 scale BJDs conveniently reduces the scope of BJDs I'm interested in to just a few types of dolls by a few companies, including, but not limited to, the following: Soom Minigems and Faery Legends, Dollmore Kidults, Lumedoll Lumelights, Souldoll Soul Littles and Dinkies, Elfdoll Hanas and Doonas, Unoa Lights, Notdoll Yohimbin, Miriam and Lucy, Xagadoll Lara, Illusion Spirit Spirit, et hoc genus omne. Of course, said interest also frustrates me, as most of the companies in this sub-realm offer female dolls, but not male ones. [I love you, Lumedoll!]
As far as I'm concerned, 1:6 scale is superior to 1:3 scale because there's so much more available in terms of clothing, furniture, accessories, sets and stuff. It's also less expensive on the whole and much less of a space hog, so I can cram way more 1:6ers into the same shelf space that would only fit a few 1:3ers.