Thanks for all the replies! Knitwear was by far the winner here (10 to 3), which is where most of mine are as well. However after the ROG I had started moving some over to jackets because I wanted them to show up there in the generated outfits as toppers. Still doesn't quite feel right though
Elizabeth, yes tanks can be tricky too. I've been putting plainer layering jersey tanks under knitwear, and silky blousy shell-type tanks under blouses. Basically thinking of them as either sleeveless tees or sleeveless blouses.
Denise, I think knitwear will show up in the ROG outfits as tops only. This is why I asked the question actually, I was getting a jacket+cardigan in several generated outfits.