If I had to pick one, it would be squirrel.
Properely prepared, both are excellent. My wife has several rabbit and squirrel dishes that are fantastic. But, for me, the squirrel is just overall better. Squirrel gravy, buttermilk squooze biscuits, white soft fried taters, and fried green tomatoes, it dont get no better. Fried squirrel, BBQ squirel, oven baked squirel basted with apricot preserves and apricot brandy, and the list oges on....