I would say that it depends on what you mean as late. If you mean getting to the park at 11 or so, then go to Epcot. We slept in last year and got to the park around 1 so we did MGM. By that time, a lot of the crowd was spread out through the park so we could do most of our shows then and then save RNRC and TOT until during Fantasmic when the lines disappear