Its a different dish. American cheese is very melty but unless you go for some specialty shit or do some kitchen chemistry, its a very uncomplex cheese. It’ll taste like a blend of mild cheeses, predominantly unaged cheddar. That’s sometimes good, but one of cheese’s best features as a food is that it’s got a wide range of deeper flavors available. For the cozy familiar dish you go with the cozy familiar version. But those of us who love the depths of cheese and don’t have that craving, we often prefer more fancy cheese blends