My favorites are:
Broken Sword 1
Broken Sword 2
Broken Sword 3
Broken Sword 4
Egyptian Prophecy
Keepsake
Longest Journey
Myst
Myst Riven
Myst Exile
Myst Uru Complete Chronicles
Myst Revelation
Myst End of Ages
Riddle of the Sphinx
Schizm 1
Schizm 2
Siberia 1
Siberia 2

But to mention a few....

Dreamfall
Syberia I
Syberia II
Secret Files I
Secret Files II
Still Life
The Lost Crown
Longest Journey
Black Mirror
80 Days
Crime Stories
Jack the Ripper
Limbo of the Lost
Keepsake
Scratches
Nibiru
Sanitarium

Here is my list and it's not necessarily in order of preference:

Lost Crown
Dead Reef
Tex Murphy Under A Killing Moon
Tex Murphy Pandora Directive
Gabriel Knight Sins Of The Father
Sinking Island
Amber Journeys Beyond
Sanitarium
Myst
Syberia
Broken Sword I
Runaway
Scratches
Tunguskas
Dreamfall
The Moment Of Silence
Black Dahlia
The Riddle of Master Lu
The Curse Of Monkey Island
Noir A Shadowy Thriller

Wow, I had a hard time this year. I had to leave off quite a few of my favs.

1. Broken Sword 3 The Sleeping Dragon
2. Broken Sword 4 Angel of Death
3. Culpa Innata
4. Dreamfall
5. Gabriel Knight 3 Blood of the Sacred, Blood of the Damned
6. Grim Fandango
7. Keepsake
8. Lost Crown
9. Mysterious Journey 2
10. Nancy Drew - Curse of Blackmoor Manor
11. Nancy Drew - Haunting of Castle Malloy
12. Nancy Drew - Phantom of Venice
13. Nancy Drew - White Wolf of Icicle Creek
14. Post Mortem
15. Rhiannon
16. Return to Mysterious Island
17. Sentinel
18. Shady Brook
19. Sherlock Holmes The Awakened
20. Still life

Tougher to do this every year.

Agatha Christie: And Then There Were None
Ankh 1
Casebook
Ceville
Colour of Murder (The) (Carol Reed 5)
Culpa Innata
Darkness Within: In Pursuit of Loath Nolder
Emerald City Confidential
Enter the Story: Les Miserables
Lost Crown (The)
Myst IV: Revelation
Nancy Drew: The Phantom of Venice
Sacred Rings (Aura 2)
Sam & Max Season I
Secret Files 2: Puritas Cordis
Secrets of Da Vinci: The Forbidden Manuscript
Sherlock Holmes: Nemesis
Simon the Sorcerer 4: Chaos Happens
Wallace & Gromit’s Grand Adventures
Uru

Up to here

I had to remove 10 from my list.

Ankh 1
Aura
Broken Sword 3: Sleeping Dragon
Dark Fall
Dracula Origin
Dreamfall
Egyptian Prophecy
Faust or 7 Games of the Soul
Legend of the Prophet and Assassin
Lost Crown
Mysterious Journey 2
Rhem 3
Rhiannon
Riddle of the Sphinx
Sherlock Holmes: The Awakened
Sherlock Holmes vs Jack the Ripper
Simon the Sorcerer 3D
Still Life 2
Syberia
Yoomurjak's Ring

hope I am not to late for this, here are mine


Agatha Christie: Murder on the Orient Express
Cleopatra: A Queen's Destiny (Riddle of the Tomb)
Culpa Innata
Dracula: Origin
Gabriel Knight 2
Gabriel Knight 3: Blood of the Sacred, Blood of the Damned
Grim Fandango
Jewels of the Oracle
Longest Journey (The)
Lost Crown (The)
Nostradamus: The Last Prophecy
Return to Mysterious Island
Sacred Rings (The)
Safecracker: The Ultimate Puzzle Adventure
Sherlock Holmes vs Jack the ripper
Sherlock Holmes: Nemesis
Shivers 1
Shivers 2
Syberia 1
Syberia 2

Marcia

Not too late at all Marcia

We are just about down to the last week so if you are playing to complete things before you choose, you had better get a hurry up!

Here goes for my list.

Agatha Christie-And Then There Were None
Agatha Christie-Murder on the Orient Express
Barrow Hill
Colour of Murder-Carol Reed
Dracula Origin
Dreamfall-the Longest Journey
Journey to the Center of the Earth
Keepsake
Lost Crown
PostMoetem
Return to Mysterious Island
Rhiannon
Secret Files-Tunguska
Sherlock Holmes-the Awakened
Sherlock Holmes-Nemesis
Sherlock Holmes vs Jack the Ripper
Still Life
Syberia I
Syberia II
Yoomurajak's Ring

carlahelp

Here is mine:

80 Days
Barrow Hill
Byzentine, The Betrayal
Dracula Origin
Dracula Resurrection
Echo-Secrets of the Lost Cavern
Grim Fandango
Keepsake
Longest Journey
Lost Crown
Omega Stone
Riddle of the Sphinx
Sanitarium
Scratches
Sherlock Holmes-The Awakened
Shivers I
Syberia I
Syberia II
Timelapse
Zork Nemesis

Ok Flotsam, its only taken me forever to compile this and boy it was difficult
Argon 4
Barrow Hill
Broken Sword 3
Delaware St John - The Seacliffe Tragedy
Darkfall 2
Keepsake
Lost Crown
Myst 1
Nancy Drew White Wolf
Nancy Drew Shadow Ranch
Nikopol
Overclocked
Paradise
Rhiannon
Sherlock Holmes Nemisis
Syberia 1
Syberia 2
The Longest Journey
The Longest Journey - Dreamfall
Tunguska

Black Mirror
Bladerunner
Broken Sword 1
Broken sword 2
Broken Sword 3
Broken Sword 4
Dreamfall
Feeble Files
Grim Fandango
Jack Keane
Moment of Silence
Monkey Island 1
Monkey Island 2
Nightlong: Union City Conspiracy
Overclocked
Runaway: A road adventure
Runaway: Dream of the turtle
Secret Files: Tunguska
Secret Files: Puritas cordis
Sherlock Holmes: The Awakened

I will just add a couple that have not been mentioned but are classics never-the-less. No point in repeating everybody else.

Lost In Time---- Coktel/Sierra 1993 and yes you need Dosbox

Kings Quest 2 vga remake Free and better than the original