I need to give the Chanel a fair try again next time I'm in downtown (and people are not queuing up in front of the boutique's door... ha, not me, folks!). Of the Guerlain Eaux (note, I only know the current ones) my favorite is Fleurs de Cedrat, which I own a bottle of. It is a straight-up, cheerful and bright lemon (with zest and juice). It's EdT concentration and longevity is around two hours (noticeable on my skin). However, these Guerlain Eaux seem redundant (and overpriced for what they are) now with Sous le Vent (not quite cheap itself, but a whole lot more going on) and Cologne Sologne (this I just splash on me almost like if I was to shower myself - it comes by the litre) in my wardrobe.