From among those you mentioned, I would do Boma, Jiko, and Artist Point, and skip Sanaa if I couldn't do all four. However, the future of Artist Point after late October is currently unknown, so if you're going after that, circumstances could make the decision for you.
This. Sadly, my beloved Artist Point isnt accepting ADRs after the end of Oct. I'd suggest you go there if youre able to get an ADR (I dont know when your trip is). AP is my fave restaurant on property. Amazing food! If your trip is Nov and later, AP wont be an option anymore. This still makes me sad because the food is phenomenal.Of the two? Go to JIKO. AP is DEAD after 10-28-2018.