As far as runs go, Sondheim's longest run was the original A Funny Thing Happened on the Way to the Forum (960-something), definetly his most accessable.
This argument is had a fair amount on this board, for better or worse. And let me say up front (for those who don't remember from last time) that I am NOT a fan of Andrew Llyod Webber, but am a HUGE fan of Stephen Sondheim.
In any case, I think the biggest thing is resentment. To put it into simple TV terms (not that I feel I need to for some of you, I just feel like it for some reason), ALW shows are like American Idol. A lot of people love them, a lot of people hate them, but EVERYONE knows about them, and they make money for it. Sondheim, on the other hand, is like Arrested Development. It's quite possibly the best show on TV, but practically no one watches it. (Hey, I'm complaining about 2 society problems at once! Yay, me!)
The bottom line is that they represent the 2 polar end of the musical theatre spectrum. ALW shows are about entertainment and giving people a good time, whereas Sondheim shows are about making an audience think, ask questions, and most importantly, feel.
If I may premire a theory in this thread: I call it, "The Rodgers & Hammerstein Theory." It says this: both ALW and Sondheim loved R&H shows growing up - Sondheim right up front and ALW from way accross the pond. However, Sondheim was taught from Hammerstein his experimentation with characters and the musical theatre in general, while ALW was influenced more by the lovely and popular tunes of Dick Rodgers. Whereas R&H were able to put those things together for shows that were both very popular AND daring and inventive, ALW has popular tunes and shows while Sondheim is very inventive and daring. If we could ever have a team (or for that matter one person) who could put those things together again, the musical theatre, I hypothosize, will once again be one of the most popular forms of entertainment. Take it or leave it, that's what I think.
"Who is Stephen Sondheim?" -roninjoey
"The man who wishes he had written Phantom of the Opera!" - SueleenGay
GO CARDINALS!!!