Depends on where you are, but we usually like to end at MK. So, if you are at the MK, then LTT is where we like to end the last night.
If there's a half day left, then a character bf at one of the hotels. We are ending our last morning at Cape May at the Beach Club too before we depart.
DH and I booked an early (really early!) morning breakfast at Chef Mickey's for our last day. I wanted a fun character meal to end our trip with, and this way we'll be able to spend the entire day in the parks, probably split between Epcot and MK.