Good For You is clearly better and when everyone gets over how different Cool For The Summer is for Demi they will agree to, however it will be Demi's biggest hit and it'll probably become my favorite single from her.
I literally cannot choose, I'm so divided between the two.
They have completely different vibes and sounds. GFY is hypnotic and sultry while CFTS is a summery sex anthem. Either way I'm gonna have both on constant repeat and I'm throwing my coins at them when their albums come out.