My flute background pushes me to love Debussy, and Messiaen with him, whose work is equally wonderful and has been inspired both harmonically and spiritually by Debussy's. In this era, time and space (space being France), while I'm at it, I'd also add André Jolivet and Albert Roussel, who, while being "smaller" composer, I think wrote a few very intriguing and inventive pieces. But yeah, Debussy forever, and ever.
