The Messiah is one of a kind of work, in English, that is quite interesting already. Sacred music in English is a kind of bonus by its own right. But JS Bach`s Mass is like a monumental work of al time. I can only by definition and elementarily technical ways describe them, like asking rubby and sapphire of the same carats, which you like better? emotionally, rubby for me but I still have to say sapphire is beautiful too, I want both of them at last.