We were at POFQ, and my dh got a croissant egg sandwich at POFQ food court virtually every day because he loved them so much. Of course, if you go to MSB, you'll get the added bonus of a sweet to go with it.
I think it depends more on when you want to eat, and how long a line you're willing to wait in. Early morning, I'd bet the resort food court lines will be long (dh always rolled out of bed and stumbled in just before breakfast ended, so no lines for him) while the mid-morning line at MSB can easily rival that of any major attraction (it may not look too bad, but it can move slooooowly).