I find it interesting and sort of amusing that there are like 100s of scents that I never experienced because either they were released before I was born or I wasnt in the hobby yet, so I ask, what are your favourite ones! Mine is probably 
Miss Dior Chérie (2005) Eau de Parfum that a family member gifted me a small shoping mall sample from 2005
Piazza di Spagna. I don't know why it got discontinued and struggle to describe what's so special about it, but it's my favorite perfume ever. I've been holding onto my precious little bottle for more than 15 years now, lol.
It's fresh, it's spicy, it's... I'd say herbal? I've owned it for so long that I genuinely struggle to describe it. It just smells like itself, and I've never come across anything else like it. Best thing ever, 10/10.
The only two discontinued fragrances I truly miss would be:
- 
A*Men Ultra Zest : The only Mugler I actually like with that burst of Blood Orange in that A*Men DNA you could wear all year round. I have not found a dupe (or clone) that comes near it. 
Ultrared Man does somewhat tap out of the same vein and fill the void to some extent, but it is not the same.
- 
La Nuit de L'Homme Bleu Électrique came with a flash and went out like a thief in the night. I thought it was well received but was discontinued pretty fast. I'm glad I stocked up on it, but still: why this was taken out of production still vexes me.
Escada (1990) 
Dewberry 
L'Eau de Monteil
