See, the food matters to me too, quality more than options for our family.
The food at Storytellers is, hands down, the best quality of the 4, but there aren't the most choices, if that's what is important to you.
The other 3 are fairly close in quality. Surf's Up may have less choices than Goofy's or the Plaza Inn, but nothing distinctive I can thing of. Oh, Goofy's has a salad bar too, I think, don't they? The other two don't have that. At the Plaza Inn, you get your own drinks, as well as food. I'll admit, I don't love that aspect.
If it matters to you, you can get 'drinks' at Storytellers and Surf's Up, and I'm guessing at Goofy's as well since it is in a hotel with a bar area.