Listening to Firebird now. That and The Rite of Spring are gorgeous. Haven't attentively listened to anything else ... but definitely will. It took me a very long time to start appreciating his music.
In fact, Stravinsky had a house above the river in my home town in W. Ukraine (that he occasionally used in 1890-1914). I like to think that he composed The Rite of Spring contemplating ice breaking on the river at early spring

There's been a museum and music school there, now closed as they are restoring it to its original shape.