60 DAYS OF GAMING: DECADE ANNIVERSARY - DAY 23: Game I think had the best graphics or art style

Then: Prince of Persia (2009)

Now: Ori and the Will of the Wisps.

I'm not going to go for pure, raw graphical fidelity this time either, as it will likely become obsolete as soon as I publish this. Hence, art-style.

Hence, Ori and the Will of the Wisps (and the previous title, Ori and the Blind Forest) win this one fairly easily by being gorgeous, evocative and, while not exactly unique (we've seen games with similar art styles before in the indie scene as well as bigger titles such as the latest Rayman games), it nevertheless uses them smartly.