Ill be in Epcot most of the time. on the 21st i have ADR at Coral Reef, then VIP for Illuminations. i always go to Illuminations my first night and usually a few other times.
besides the at Cantina, there are some good slushies in China at the tea stand now as well as some in France.
and of course the etc at the other countries.
i can be in Epcot any night for Illuminations as my ADRs are for early dinners.