Didn't want to hijack the opposite thread:
I love the variety of cultures and ethnicities. I love that the core setting isn't just Medieval European Fantasy Again.
I love the Shoanti.
I love Osirion and all of its Egyptianess.
I love the Mwangi Explanse and the countless cultures found within. I love Jalmeray and all its over-the-top fantasic nature.
I love Numeria with its barbarians fighting robot scorpions with machine-gun mandibles.
I love that there's an island with Kamen Rider looking assassins that may or may not fight pirates and dinosaurs.
I love Dehrukani even if there's isn't much to know about it yet.
I love the entire Belkzen/Lastwall/Nirmathas/Molthrune stack of nations and all the themes that can be explored there.
I love how Ustalav covers all the Universal and Hammer tropes and still has room for everything Ravenloft was and more.
I love horrible, nightmarish Nidal.
I love the complicated and ethically murky scene in Katapesh.
I love the cultures and possibilities that have sprung out of Geb, Nex, and the Mana Wastes, and how they can easily grow into cultures that have absolutely no near-real-world analogues.
I love Varisia, period.
I love how weird the gnomes are. I love that the elves aren't presented as an infallible race as a whole. I love that good orcs, drow, goblins, etc have been pointed out with both examples and possibilities.
I love that almost every planet in Golarion's solar system is a campaign setting unto itself. I love that psionics have a place on both Golarion and those other worlds.
I love the fleshed out and complex pantheon, and all of the entanglements that tie it together. I love that the various gods and their churches have been developed so that opposing bodies of the faithful can easily be weaved into plots that aren't just good vs. evil/order vs. chaos. I love the nuance present there. I love that the benevolent goddess of dreams was originally a giant alien bug. I love that the god of courage got drunk and doesn't even remember how he became a god. I love the Shelyn/Zon-Kuthon conflict.
I love the way the Darklands are arranged, especially Orv.
I love the Andorens' uniforms right alongside the Egyptian-garb the Osirianis wear rigth alongside whatever wild clothing Carolina Eade designs for Jalmeray and Druma right alongside more medieval European attire coming from the various nations that support that. I love the variety.
I love how the various outsider races relate to each other, and how complicated some of their alliances can be, such as the coalition of good and evil outsiders guarding the stream of souls.
I love that there are demons living in Elysium by way of Calistria's realm, and how this makes one of the heavenly planes that much wilder and exciting.
I love the First World.
I love that so much is left open for us to build upon and make it our own.
Thank, Paizo.