The Matrix Awakens, no doubt.
But what's really impressive is how little different I feel now compared to this post from last year, made before owning current gen machines:
In terms of pure visuals, i still think it's The Order: 1886.
Most of Uncharted 4 and Lost Legacy looks just as good, and sometimes they are literally pre-rendered quality, but are not as consistent for obvious reasons.
Spider-Man on PS4Pro, during sunset, is probably my favorite of them all.
TLOUII is also quite incredible.
Ghost of Tsushima is the most mesmerising thanks to its art direction.
RDR2 in version 1.00 (and that version only) is the most impressive game ever.