Hi Jennifer!
I've done the Liberty Tree Tavern Lunch and the Kona Breakfast.
The Liberty Tree Tavern lunch is awesome. I like the Pilgrim's Feast, it's essentially Thanksgiving on a plate. Turkey breast, mashed potatoes, stuffing, green beans and gravy...I think it is terrific, and something you don't see in a lot of restaurants at WDW. The pot roast is another very good choice. Great colonial atmosphere, very calming break from touring the MK.
Kona breakfast is very nice as well, I always have trouble deciding between the Tonga Toast and the Macadamia Nut Pineapple pancakes. Both are outstanding!
Have a great time!!!!
Jason