I have seen so many beautiful cakes that have been decorated with fondant, although my experience working with it has been very limited. Its versatility certainly seems to have an advantage over traditional frosting on cakes (like buttercream), but as far as the yummy factor goes, I think frosting takes the cake (no pun intended I remember as a kid we would all hope to get a piece of cake that had a big chunk of a fluffy buttercream rose on it LOL! Somehow biting into a red and black fondant ladybug doesn't seem nearly as appealing. Are there folks that really do prefer fondant over frosting?
I make Marshmallow Fondont and it tastes very good, but I wouldn't want to eat a slab of it! But, I have lots of fondont decorations plucked off my cakes and gobbled up by little ones. It is different, but probably just a preference thing.
I also make marshmallow fondant. The violin cake in my pictures was for adults and they cut off pieces of the fondant to eat and fought over who got what. And my son loves to eat the left over fondant too