I think this was true, but I'll be damned if I wouldn't say The Drifter has taken the crown. It raises the narrative bar so much it's just mind boggling you can even tell a story with that much momentum and tension in an adventure game.
Overall we've been eating very well the last few years when it comes to new adventure games. In most of the 2010s new adventure games tended to not really be very good, but the stuff we've seen the last few years from the likes of Wadjet Eye and Grundislav are absolutely on par if not better than the highlights of the '90s.
The Drifter is a great narrative, but the puzzles are just OK.
Wadjet Eye developed and published games have quite a few great games. Blackwell series is awesome (I would've wanted a different ending for the series, but the games are great), Resonance, Unavowed, Primordia, Gemini Rue and Technobabylon are all great as well.
Kathy Rain is also good (haven't played the second one).
I doubt, though, that any are better than Curse of Monkey Island, Grim Fandango (which is arguably held back by its 3d graphics and controls) or The Longest Journey.