Both. Can't choose. EDIT: April Ethereal, because of, "She laughing and weeping at once: "take me away". I don't know how or why, I´ll never know When" Then the awesome outro. But When is still up there, just an awesome song overall.
Damn! both are great songs in thier own way.. When wins with its clean haunting vocal lines which breaks into a grand ending.
It's strange that I always liked both songs equally. But when I looked to the choices the answer became clear in my mind: "When".