Went Jan 5-11, did the EMH at MK and MGM-Both were great. Peter pan had 5 minute wait, everything else was walk up-MGM was empty. Guess most people finish MGM earlier and then go home so we had park to ourselves it felt like. In MK- we really did have park to ourselves,well at least adventureland. We were the last ones to ride Pirates Of Car. before they closed and when we came out, we were the only ones in that area. Now that was cool. Just slowly took our time getting to the front. You really start to notice so many details on building and such when it empty like that.
Just make sure you check on closing times for the restaurants, they don't all stay open till closing.