In Australia, Maccas make the best damn sausage and egg mcmuffin and hash browns, and their fries are infinitely better than KFC. KFC chicken is also greasy as fuck and everything else they offer tastes like ass. But damn, their Hot & Spicy pieces, fuck they're good.
So my preference is; KFC Hot & Spicy ==> Maccas breakfast ==> Maccas Fries ==> Everything else at KFC ==> Everything else at Maccas.