I read the thread title & thought 'All Three!'
But you just asked about food, so hmmm.
Of course if you want AYCE &/or characters, then Cape May or GG. Could be used for a 2 meal day.
If you want quieter, more intimate GG for sure, then Kona.
If its a park day & you don't want to spend gobs of time commuting to & from a meal, then GG is best, next would be walking to Cape May.
If you have small kids or large party where you don't want to be up & down at a buffet. Then Kona or GG would work.
For overall experience & ambiance my ranking would be first GG, then Cape May, then Kona (but still really enjoy Kona).
I guess you can see from my response that it comes down to so much more than 'best food'. Lots of other considerations go into the pick. But all are solid picks. Enjoy!