I've pondered over this topic for awhile and It rather saddens me when an illustrious fragrance is reformulated to a resemble a shadow of its past self, however there are a few exceptions when a reformulation might be in good order.
It all began with my sample of Lanvin's Arpege pour homme, I struggle to enjoy it & I reckon that its formualtion is compromised by a peculiar middle note (probably violet?), I strongly believe that Arpege pour homme could benefit from a tweak in its formula (i.e. an exclusion/reinterpretation of this odd note), are there any others that you think might benefit from a reformulation?
Let your nose be your pilot