Robbie those are my exact thoughts on Lead Actress. I'm currently thinking Cusack takes 5th slot, as she just had SO much to do and sang gloriously (and got the best songs of the show).
As for other categories being discussed above:
Featured Actress in a Musical: Patti LuPone, Jennifer Simard, and Jane Lynch all are probably safe. Last 2 slots are between L Morgan Lee, Jeanette Bayardelle, Jayne Houdyshell, Caissie Levy, and Samantha Williams.
Featured Actress in a Play: I still think Kenita Miller is the only person even remotely locked. Then I have Uzo Aduba, Jessica Frances Dukes, Rachel Dratch, and Okwui Okpokwasili.
BUT there's huge threats from Johanna Day, Amber Gray, Phylicia Rashad, Julie White, Blair Brown, Gaby French, and Kara Young. I still think this is the toughest category of the whole ceremony to call and it could go 100 different ways.