I think that Howard's music works really great in Shyamalan's movies.
Both have great talents. Music for Sixth Sense, Unbreakable or Signs is fantastic. Three best scenes from these films are so special partly beacuse of Howard's music. Sixth Sense - when Bruce Willis finds out the truth, Unbreakable - when Bruce (again )comes out from the pool and fights the murderer, Signs - final confrontation between Gibson, Phoenix and an alien. And thru whole mvoies, from begining to an end - music steers your emotions. Wish they both (Shyamalan and Howard) could always work together.