Ahsoka drinks whatever (assuming caf and tea since that's canon) but when offered a choice, I want to say tea as it reminds her of Master Kenobi. (Sorry Anakin.) She'd drink it as simply as possible but would accept however it was presented to her.

Jessica drinks coffee, in any shape or form. If she is ordering it, she'll take it fancy with foamed milk and flavoring; I'm thinking she's a mocha gal. If she is making it, it's just black as that is easy peasy. (Someday I want her to discover raktajino.)

Tybalt comes from a time when tea was the only option but he is learning to enjoy coffee thanks to Toby. Still, it is slow going and he would take his coffee (when he is not planning on handing it to Toby after she inhales hers) with lots of milk and sugar.