I love and own Fleur du Male, i think it's a sleeper. Great sillage and longevity, quite a unique and refined smell. I've had good feedback with this one.
Aqua di Gio is a best seller, one of the most massified and overused frags. It's the perfect example of the aquatic/fresh family. I don't like it, but I recognize it works well for most people.
I haven't tried the others, only quick sniffs, so I can't talk about them too much.