After my mom passed away a few years ago, I told my husband I needed to get away alone on a vacation. During February break I flew down and stayed at the animal kingdom Jambo, savannah view. There is a great view of the animals from your balcony, you have use of both the Jambo and Kindani pools, Boma is my FAVORITE restaurant, and Sanaa is great too! There are lots of nooks and crannies to sit and read, the bar at Jambo is great too, has TVs.
So as a solo traveler, you may not want to spend the $$$on the room, and just park hop and shop all the time. OR part of your getaway may be relaxing by a great pool, sitting on your balcony with a great view in the morning and evening. I highly recommend either Animal kingdom lodge or the Wilderness lodge. The Polynesian is wonderful too and can be relaxing, you can walk to the luau, there is a beach, restaurant is great, there are walking options, and you can't beat the monorail for several park access.
My favorite restaurants...and I have eaten at all of these alone are: Boma, Kouzzina on the boardwalk, either of the two restaurants in Italy, Rose and Crown in England, Morrocco, portobello, liberty tree tavern, yak and yeti, flame tree barbecue, MAMA MELROSE'S,

And the exciting restaurant at the wilderness lodge.
Hope this helps any solo travelers! Bring your smart phone, iPad, and camera!