Our family enjoyed Wawona Cabin. It was very clean, and the location was convenient with it being in the park but away from the crowds. There are even two short, beatiful hiking trails right down the road.
Two things you should know: 1. There is no A/C. There are windows with screens you can open, as well as ceiling fans, but it will get stuffy in the summer. 2. There is no shower in the master bathroom, only a tub. Granted, the tub is nice, but its not always convenient. If you want to quickly rinse off, you'll have to use the lone shower that's adjacent to the other bedroom.