1) Pop/Rock - The Soundtrack to the movie 'Phenomenon'. Every cut is wonderful, and there's a broad swath of musical styles and artists.
2) Jazz - "Beyond the Missouri Sky' Charlie Hayden and Pat Metheny. Absolutely transcendent.
3) Classical - 'Paul Galbraith Plays Bach: Violin Sonatas & Partitas'. Because they could not be performed on a standard guitar, he designed and built the instrument, he transcribed the pieces, and he performs them flawlessly. To accomplish one of these would be a crowning achievement for most. The achieve all of them is both humbling and inspring.