Question:
Annick Goutal - Folavril
Amouage - Dia
Antonia's Flowers - Floret
Bond No. 9 - Madison Soirée
Bulgari - Blu
Calvin Klein - CK Be
Caron - Narcisse Noir
Carthusia - IO "Capri"
Cartier - Le Baiser du Dragon
Chanel - Bois des Îles
Chantecaille - Frangipane
Christian Dior - Hypnotic Poison
Creed - Angelique Encens
Diptyque - L'Ombre dans L'Eau
Editions de Parfums Frederic Malle - Musc Ravageur
Estée Lauder - Youth Dew
Fresh - Sake
Giorgio Armani - Mania (original)
Gucci - Gucci Eau de Parfum
Guerlain - Vol de Nuit
Hermès - 24, Faubourg
Houbigant - Quelques Fleurs L'Original
Issey Miyake - Le Feu D'Issey
Jean Paul Gaultier - Le Mâle
Jennifer Lopez - Live
Keiko Mecheri - Osmanthus
Kenzo - Parfum d'Été
L'Artisan Parfumeur - La Chasse Aux Papillons
Lalique - Flora Bella
Lancôme - Trésor
Michael Kors - Michael
Montale - Sweet Oriental Dream
Pierre Balmain - Jolie Madame
Robert Piguet - Fracas
Serge Lutens Les Salons du Palais Royal Shiseido - Douce Amère
Thierry Mugler - Angel
Yves Saint Laurent - Nu Eau de Parfum
Looking at this list, I realised that my taste have evolved over the years. There are a few examples... I used to love Chanel no. 22 before I knew Bois des Îles. It was Tuberous Indiana before I knew Angelique Encens. I must agree that it was not possible to choose from the bigger houses like Guerlain, YSL or Serge Lutens. Beside Vol de Nuit, I also love Shalimar from Guerlain and too many to mentions from the SL's list.

Answer:
when it comes to number of fragrance houses tried, unfortunately, I haven't tried too many...I know a lot of them, but I just haven't had the chance to try any on my skin! There are also quite a few houses that I haven't tried too many fragrances of, or only have one fragrance out at the moment, so I'm not listing them. So, here is my list:
Britney Spears: Fantasy
Calvin Klein: Contradiction
Davidoff: Echo Woman
Dolce & Gabbana: The One
Donna Karan: Be Delicious
Escada: Sunset Heat
Giorgio Armani: Armani Code
Jennifer Lopez: Live Luxe
Lancôme: Hypnôse
Thierry Mugler: Alien
YSL: Baby Doll Paris

Answer:
This is going to be harrrrrd:
Annick Goutal - Songes EdP
Balmain - Jolie Madame
Bond no. 9 – New Haarlem
Bvlgari - Black
Caron - Tabac Blond or Poivre (sorry, impossible)
Chanel - Cuir de Russie
Christian Dior - Diorling
Comme des Garçons – Kyoto
Creed – Angelique Encens
Diptyque - Tam Dao
Donna Karan - Chaos
Etro - Messe de Minuit
Frederic Malle - Musc Ravageur
Giorgio Armani - Bois d'Encens
Gres - Cabochard (vintage)
Guerlain - Mitsouko
Hermès - Doblis
i Profumi di Firenze - Ambra del Nepal
Jean Patou - 1000
Jo Malone - Vetiver Java
Keiko Mecheri – Oliban
Lancome - Magie
Lanvin - Scandal
L'Artisan - Fleur d'Oranger
Le Labo - Patchouli
Lorenzo Villoresi - Piper Nigrum
Montale - Aoud Rose Petals
Molinard - Habanita
MPG - Or des Indes
Parfumerie Generale - Querelle
Parfums de Nicolai - Vanille Tonka
Robert Piguet - Bandit
Serge Lutens – Fumerie Turque
SMN - Nostalgia
Tauer - Orris
Yves Saint Laurent - Opium

Answer:
Guerlain: Right now, it's undeniably Cherry Blossom. Usually it's Mitsouko or LHB.
Chanel: Coco (although I can't wear it and I haven't smelled Les Exclusifs)
Yves St. Laurent: Opium
L'artisan: Bois Farine
Serge Lutens: Chergui
Keiko Mecheri: Loukhoum
L'Occitane: Neroli
Bond no. 9: West Side (this is debatable)
Hanae Mori: Magical Moon
Hermes: Eau des Merveilles
Bvlgari: au The Rouge
Commes des Garcons: Incense Kyoto
Dior: Miss Dior Cherie (sad, but true. of the classic Diors, it's Diorissimo)
Annick Goutal: Les Nuits d'Hadrien
Diptyque: L'Ombre dans L'Eau
Demeter: Thunderstorm
Fresh: Lemon Sugar
Caron: Bellodgia
Patou: Sira des Indes
Calvin Klein: Truth
Santa Maria Novela: Ylang-ylang
Miller Harris: Terre de Bois

Answer:
L'Artisan Mimosa Pour Moi
Occitane: eau de Provence
Serge Lutens Fleur d'Oranger
Guerlain: Vetiver
MPG: Rose Muskissme
Nicolai:Fig Tea
Rosine: Zest de Rose
Jo Malone Verbena
Annick Goutal Mandragore
Hermes: Terre Fragonard Eau Fantasique
Bond #9: Eau De Noho
Ayala Moriel: Epice Sauvage
Frederic Malle: En Passant

Answer:
Guerlain - Shalimar
Jean Patou - Joy
Houbigant - Quelques Fleurs
Etro - Shaal Nur
Montale - Intense Tiare
Lagerfeld - Chloé
Chanel - Bois des Iles
Miriam Mirani - Aqaba
Serge Lutens - Encens et Lavande
Floris - Malmaison
Creed - Angelique Encens
Mugler - Angel Innocent
Lolita Lempicka - Lolita Lempicka EdP
Boucheron - Jaipur
YSL - Paris
Balenciaga - Rumba

Answer:
Dior- Dune
Chanel- Cristalle
Thierry Mugler- Angel Le Lys
L'Artisan- Poivre Piquant
Creed- Spring Flower
Valentino-V
Guerlain-Aqua Allegoria Pamplelune/L'Instant (couldn't choose!)
Kenzo-Flower Le Parfum
Bvlgari- Voile de Jasmin
Calvin Klein- Eternity Rose Blush (disc.)
Annick Goutal- Les Nuits d'Hadrien
Etro- Shaal Nur
Keiko Mecheri- Sanguine
Acqua di Parma- Lavanda Tonica
Le Prairie- Silver Rain
Escada- Rockin' Rio
Gucci- Eau de Parfum II
Le Maison de les Vanilles- Vanille Noir de Mexique
Donna Karan- Cashmere Mist
Estee Lauder- Spellbound
Azzaro- Eau Belle (disc.)
Prada- Prada Tendre
Crabtree & Evelyn- Savannah Gardens
Roger et Gallet- Aroma Shiso