Hi Ashley!
What a great way to end your vacation! We always try to book a character meal for our last day as our "see ya real soon" to our home away from home.
Chef Mickey's vs. Tusker House...it's a difficult decision...If you plan on heading to Magic Kingdom for your last day in the parks, then I'd do Chef Mickey's for the easy access. Tusker House would be quite a bit out of the way if you were planning on hitting Magic Kingdom the last day. Likewise, if you're planning on going to Animal Kingdom and bidding a fond farewell to
my favorite Yeti, then Chef Mickey's would be out of the way for you.
That being said, I'm torn as to where I'd choose...as it is your last day in the parks. I say go for Chef Mickey's because we always begin/end our vacations at Magic Kingdom and Chef Mickey's is close...BUT...Tusker House holds some very special memories for my husband and myself. Does that help?
Ultimately I think proximity to your park choice for that day should be the determining factor. It'll reduce your travel time and maximize your park time that all important last day!
Have a magical vacation!
Amanda