You're missing lots of options that have been proposed:
microbitcoin
microbits
micros
mics
µBTC
uBits
crobits
zib
It's not much use as a poll if you've already limited it to your two favorites, including one (renaming "bitcoin") that's nearly impossible to pull off without major confusion and risk of money-losing errors.
I did not pick my favorites. I am deeply opposed to "bits" but I included it in the poll, because it is popular. None of options on your list (one of which I came up with) have a chance of being accepted. So no, I did not include the one that I came up with (which I would have done if I were playing favorites) and instead I included the one that is pure confusion ("bits"). Redefining how many satoshi's to a bitcoin would not cause major confusion. In theory it would, but in reality it wouldn't.