The bottomline is very simple: I don't like Glass and you like (some) of his music. Whether you agree with my opinion or not isn't going to change the outcome is it?
My only issue was that you seemed to be saying something more than just whether or not you liked Glass.
Is there a work by Glass that you feel I should hear? A work that will change my opinion? Because I've heard music from Einstein on the Beach to his Symphony No. 3. I haven't been keeping up with what he has been doing lately because I have a feeling of what I'll be getting: go nowhere, undramatic, unemotional, repetition for it's own sake, and the same basic approach to rhythm he's had for years.
Obviously I echo the Violin Concerto. Not sure how anyone can listen to that second movement and not hear something of charm and elegance, but you never know. The jury is out. I personally would recommend Glass' film music. Assuming you don't already have any pre-decided stance against film music, then you will find that Glass is a true master of the medium. Film is good for Glass because it requires him to abandon the taxing repetitions and needless atonality of some of his absolute music to thus make something rather accessible. He's forced to work with a theme, and these themes I think tame his aesthetic rather nicely, revealing the power that rhythm, cadence, and layers of harmony can have for compelling themes and melodies, much in the tradition of Schubert and Beethoven (Glass cites them both as principal influences). As such, I'd recommend his score for
Koyannisqatsi (considered a canonical classic of the medium) - particulary the 'Pruit Igoe' movement, which was later used again in the film
Watchmen - along with the score for
The Hours, the 1939
Dracula, and more recently,
The Illusionist. There are a lot of gems to be found in his film work.
Now, none of these pieces may make your jaw drop, but at least it might reveal Glass to be a capable composer when he wants to be, and when given the right venue. Or not - who knows?