I used to hate this sort of music: over-blown, melodramatic, those soppy grins many sopranos wear when singing a 'happy' bit, then reverting to a face like a smacked a*se when the music's 'serious' again.
But now I can't get enough of it, and the above raises hairs on the back of the neck. A powerful, highly trained soprano, with a lung capacity like a troop of bagpipes (watch Anne Sofie von Otter pump herself up at 1:47 - gosh) is a thing of beauty and wonder.
Do you find your music tastes change over time and, if so, can you trace it to a cause? In my case it was being exposed recently to Dudamel conducting some highly Romantic 19th century stuff. It was an eye-opener and blew away my prejudices.