Hola,
I’m a native Spanish speaker from Spain (I live in the U.S., spoke English all my life with a native English speaking father and my English could be better than my Spanish). Since I am Spanish, we use vosotros. While I heard people in the U.S. learn “ustedes comen”, I would say “vosotros coméis”.
Uruguayan here.
Even though we learn(ed?) the conjugations as “yo como, tú comes, él come, nosotros comemos, vosotros coméis, ellos comen”, Uruguayan Spanish uses neither “tú” (“vos” in informal contexts, and “usted” in formal contexts), nor “vosotros” (we use “ustedes”).
So in actual everyday talk is “yo como, vos comés (*), él come, nosotros comemos, ustedes comen, ellos comen”.
(*) Note the accent, I recently learned it’s commonly called voseo rioplatense, or more formally, Español rioplatense.