flotsam, I read you, so here I am. granny, you're absolutely right - I, for one have been spending far too much time in the Pandora-Stitchman realm (it's so addictive)!
Anyhow, here's my list.
1. Myst (my first game and it will always be No. 1 for me.)
The rest are alphabetical:
2. Beyond Atlantis (aka Atlantis 2)
3. Broken Sword 1, Circle of Blood (aka Shadow of the Templars)
4. Broken Sword 2, The Smoking Mirror
5. Kyrandia 1
6. Monkey Island 1, Secret of
7. Riddle of the Sphinx
The last 5 I haven't played yet, but feel certain if I had they'd be in my top 10 and I would recommend them to others.
11. Dark Fall
14. Syberia 1
15. Syberia 2
Whew! Now I'm on record.