) in this case 
the greatness of this opera is the whole .. wall .. not the sum of the single addends .. all the songs, fillers, transitions contribute to make it .. uhm well .. what it is
that said considering the songs itself, aside of the ones already named, well there are many tunes that could be great just by themselves but grow with immense "power" there where they are when they come.
Thin ice, Mother, Empty spaces, One of my turns, Happiest days of our lives, Another brick in the wall part I, Run like hell ... and even ... The Trial
i'm not trying to say it's better than the other 2 albums .. when in presence of such greatness i think one should say "i prefer" not "it's better than" .. my opinion
by the way i prefer Dark Side
it's not like comparing Achting Baby to the Bomb
ps: i haven't noticed that the Pink Floyd thread has changed its title hehe
