Art Direction > Tech
I consider myself a graphics whore, but I don't care how many polygons, hi res textures, animated shaders, normal maps, self shadowed and motion blurred objects you throw at a game. If it is devoid of any substance on the art side it will just fall flat. I'm sorry KRT, but PoE simply looks like shit. The tech looks nice though, but it's not saving that game due to the lack of art direction which is making it look textbook generic and completely uninteresting to me.
Now, Diablo 3, isn't a technical masterpiece. I'm not sure who would argue that it is. I also believe a studio with pocketbooks and resources like Blizzard has is making very particular decisions as to why they are approaching the graphics as they are. Not due to a lack of "tech", but due to a goal put in place for the game itself. You ask how the game has any examples of "good" art and despite it being completely subjective, I personally find that there is a lot to like in the art of Diablo 3.
1) The character silhouettes for one. There is no mistaking which class is which and all of the classes have a very unique shape that define them.
2) Character animations are top notch in my opinion and really breathe life into the stereotypes that blizzard has chosen for it's heroes. This is also one of the areas where many studios fail, I'm looking at you Bethesda! The default stance of the demon hunters are ace!
3) Soft painterly texturing for background elements is an amazing choice in my opinion with how they approached the environment look. The small leaves on the ground, the detailed edges of the twisted and gnarled trees and the soft blades of grass that move as you walk though them all create a really cool painted look that I've not seen any another game like this yet. It reminds me of a more detailed Skyward Sword than anything, only not pointillism. Anyhow, some may see a "lack of tech" I see an "accomplished art decision".
4) Spell effects are just awesome and very well done. I haven't seen an effect yet that I thought was just plain ugly.
5) Sound design and voice acting seem to be top notch as well. The thud of the bodies, the sizzle of the electricity, the wrapping noise of the bola finding it's target, seriously the sound in this game is really freaking good. I've seen complaints about the acting, but I would point the finger at the writing first.
Now I'm not devoid of any Blizzard criticism, I would like to the see the main heroes have a bit more of a polycount and texture resolution. And I would also like to see a stronger use of normal maps instead of just flat painted textures. Having spells and other elements cast lights would also be very nice and I agree the lighting feels very limited in the current beta. That being said I would in no way shape or form, ever, ever, and I mean ever, trade art for tech or should I say substance for flash.