Ack! But, you see, that's too many options. Over-pattern-whelming.
(Bookmarked for later, though, so thanks!)
FWIW, I ended up choosing just to do them in a garter rib. I have to admit: I'm a genius.
It's showing off the yarn nicely while creating some interesting subtle detail that I wouldn't have expected. (The knit stitches completely hide while there are nice vertical lines where the "rib" flips.)
I may die of k2p2 boredom, but it's pretty enough that I can't complain.
Edit: I googled "garter rib" out of curiosity and found out that there are at least four different interpretations of the stitch, especially where socks are concerned. So, for the record, this
is the stitch pattern I'm using.