>>12070186
I don't really have one favorite, but even if I tend to enjoy all of them (even the worst ones), from a design perspective I'm most interested in games with unique worldbuilding with its own ad-hoc logic built in, i.e. no monkey wrench or paint-the-cat-to-look-like-a-skunk sort of puzzles.

Stuff like The Neverhood, Grim Fandango or The Dig etc.