You'll be happy to know that some classical music that sends shivers down my spine in classical - eg O Fortuna by Carl Orff or Wagner's Ride of the Valkyries. Some of Bach Jnr's work does it too but I can't remember the name of them
But the one track that sends me into the heavens is Ecstasy of Gold by Ennio Morricone. (Note The Good, The Bad And The Ugly is my favourite movie of all time).
Also not metal, but the track Heaven On Their Minds from Jesus Christ Superstar. Just that build up and when the singer hits the high notes...
Oh totally agree an opening track should sucker you in. But a good album should also not whither away.
If you've got to have filler, then track 4 on first side and track 6 or 7 assuming an 8 song album.