Interesting this is brought up, I just purchased Tiffany for Men last Friday.
For some very strange reason, this grocery store on my way home from work had 50ml bottles for $25, not a bad deal. Stranger still, they had BOTH the original and concentree - I was going to get both, but the differences between the two weren't that pronounced AND of the small difference there was, the original was more refined/more complex - That said, the concentree had a stronger wood note, distorting the balance of the Original - The nutmeg note was also less pronounced in the concentree, which was a strike against it for me because the nutmeg accord is what really makes Tiffany unique.
In a previous post I mentioned that IMO Tiffany for Men and Chanel PM concentree are very close - well they are, but the main difference is the nutmeg accord - Tiffany has it, PM doesn't and focuses more on the woods - same with Tiffany concentree -- That said, between Tiffany Concentree and PM concentree, the PM concentree is more refined and a better scent, and I already have it, so I let it go.
This is the kind of rationale I go through with myself when out shopping - sometimes I even drive *myself* nuts - nuts over nutmeg Â* Â*: