(Though I think Nienna's point was that it's hard enough to choose 5 from even
one soundtrack, let alone narrowing it down out of
five!
)
1 - Breaking of the Fellowship
2 - The Black Gate Opens
3 - Misty Mountains
4 - Minas Tirith
4 - The Hornburg (though mostly for the Lothlorien battle theme. What I wouldn't give for a full version of that...)