Really depends if you'll be staying on-site for FOTL or not. We were there from the Sun thru Wed before this year. With FOTL, no problem @ all. Did notice that beginning on Tues & moreso on Weds; long lines started to form after noon.
MGM the Thursday before was very crowded, even using EE, all day. On Fri w/EE, MK was crowded, but not as bad as MGM. On Pres Day, we went to Epcot (another EE). Things went so smoothly, I was lulled into thinking taking the monorail up to MK would be a great way to end our trip. What a mistake, near gridlock - rode 2 rides in 6 hours. Good Luck.