This is interesting to me, because only really recently did i start to appreciate Sondheim.
I've been listening to Webber since i was a wee child (8 years old, and my cousins and i would run around the neighbourhood singing "Magical Mr. Mistopholes", and in art class i drew pictures of the Phantom leading Christine to his underground lair), and they are why i originally loved musical theatre. And true, when you listen to Phantom, you are hit with overwhelmingly 80's synthesized music, but that's what helps make the show.
My love of Sondheim developed in these past 6 months. The first thing i ever heard of his was 'West Side Story', which i hated. "Tonight" seemed to go on forever. But then a friend started playing songs from 'Into the Woods' and 'Sunday in the Park with George' at our drama rehersals, and i was overwhelmed by the complex music and witty lyrics. Now i've got 'Sweeny Todd' sitting in my car and 'A Funny Thing..." sheet music on my piano.
I love both of them. Webber does seem more simplistic when compared to Sondheim, his lyrics (which, since he doesn't write, he can't be completely blamed for) don't have the quick sharpness that Sondheim has. I envy Sondheim's complex creations, and try my best to take them as a model for what i try to write. Sondheim is a thinking person's composer for musical theatre.
But still, when i'm driving home, thinking about that one guy, i find myself singing Webber's "Unexpected Song" or "I Don't Know How to Love Him".
"Umm...A1 is a steak sauce."