As for Mystic river, I liked it too (the end), but new viewings make me realize how useless it is. The film should've faded away from Sean Penn walking with his arms open in the street to the panning of the river. The End. To Me, at least.

The Usual Suspects, a film I love. However I found out recently that it wasn't written by Singer, which was a big blow to how I think of him, since it was thw writing that made the film. Still a great film noneoftheless.