In MK, at the very least, I would book TS. The QS lines can get super long there. For AK, if you have time, I would get a Landry's Select Card (it's $25, but that $25 goes toward your bill and you get a $25 bonus if it's your birthday month - which can be any month you choose!) and get priority seating at Yak & Yeti and/or Rainforest Cafe (where the prices aren't bad). With the Landry's Select Card, you can show up whenever you want and get priority seating over people with ADR's. We just did this on Dec. 19 and had about a minute wait for our table. In EP, if you aren't picky, you can probably snag a TS while you are there if the QS lines are long. We ate at Kringla, Les Halles and Sunshine Seasons in EP right before Christmas and the WS QS were definitely more manageable than Sunshine Seasons. In DHS, QS should be fine. We did Backlot right before Christmas and the line was pretty fast. It's MK that I would be really worried about. We tried to do QS there right after Christmas two years ago and it was so nuts we left the park and went to the Wave for lunch!