Grilled cheese is harder to make. I have to get butter, either warm it up so it can spread or just straight up melt it in the microwave, brush/slather it on the bread, heat up the stove, apply the cheese in a semi-even way, grill it and I still only have one fucking sandwich, which is never enough.
A good side with it is some tomato sauce heated up in a small bowl to dip the sandwich into.
With PB&J, or AB&J as I do often, you can get really creative and it's far less work. All kinds of different breads and fruit spread combinations. PB&Co makes an amazing cinnamon raisin peanut butter.
But to really finish it off well I love to pop it in the toaster oven to toast prior to eating. Makes the PB/AB all melty and gooey, with the bread having a satisfying crunch...