Love the 7th Guest, but if it is selected there has to have the caveat that folks must use a program to help with the virus puzzle as the AI in that game is based on your computer specs so modern computers make the AI unbeatable unless you do very specific moves. It is an absolute pain.
Outside of that I love the 7th Guest. Any excuse to include an fmv game is a good one in my book. I adore fmv games.