They're all fairly similar...and true to their name. Bois et Fruit has a distinct, sweet peach note in it, Violette has a dry, violet note, and is a bit more green than the others. Musc is probably the lightest of the bunch, and fades into a soft musk. I haven't tried Oriental yet.
All start with the same, unique cedar note, and to my nose are almost identical until the topnotes fade a bit. I'd say if you like one, you'll like them all. Violette is my fav I think.