Let's take a look at some more knit fabrics.
Sometimes the determination is easy. Fabric #3 has an interesting texture with the design created in floats.
And remember the Shawl Collar Cardi? I received comments from a couple of people, after seeing pics of the inside of the cardigan, that were perhaps actually comments on my choice of the public side in this fabric I designed. One asked if the cardigan were reversible. Another stated that she really liked the pattern on the inside. (I think she was being polite, because she really preferred the inside!)