I made an interesting analogy in my music appreciation class the other day (it was off the cuff and on the fly, as many of my better analogies tend to be). I told the students that Haydn, as a composer, was the kind of person who could come over to your house and make a fantastic meal out of what you thought was a refrigerator and cabinets full of nothing. He would put usual things together in unusual ways, and make a feast for the imagination as well as the palate. Mozart, on the other hand, would come to your house loaded with all sorts of fresh produce (that he grew himself), and he would put those fresh ingredients (lots and lots of them) together in seemingly ordinary ways, but they would taste completely out of this world.
It would boggle the mind to even try to reproduce either of their meals.