On average i guess i would agree he is average, but that is a grading built up from boring pieces and a couple of flashes of brilliance. I have always felt that neglected composers do have something to offer, but you have to wade through some muck to find a few pearls. To me, it is all a matter of percentages. With Beethoven, one could submit that almost 100% is genius, but as you start to work your way down the list of "greatest", the percentage begins to go down until you reach 0% with Schumann.