Down to Two Dimensions--Greg Kasavin
My problem with 3D graphics in games--and it's always been my problem with 3D graphics in games--is that they're unedited. You can often view the action from any angle, and frames of animation are typically never skipped. In a way, then, I think the cinematic power of gaming almost took a step back with the transition from 2D to 3D. 2D game characters are displayed precisely how the artist chooses to display them to you. There is no extraneous frame of animation to be found. 3D game characters, meanwhile, are yours to control, so you may rotate them and view them from whichever unflattering angle you like.
When you watch a movie, you don't question the fact that the movie is a series of carefully contrived camera shots. You typically don't find yourself wishing you could see the action from another perspective. You don't dream of rotating the scene to your desired angle or anything like that. Or if you do find yourself wishing these things, it's hopefully because that's exactly what the movie director wants you to be feeling, such as during a claustrophobic scene in a horror movie. I equate 2D game graphics to this sort of model. They are purely intentional. Every little detail that's put into 2D art is meant to be seen, whereas with 3D graphics, some of the angles, perspectives, animations, and effects may be incidental or accidental.
I still think 2D games handle collision detection (or the interaction between two characters or objects) better than 3D games do, on average. And having good collision detection is one of the most fundamentally important aspects of just about any game. Likewise, I think 2D game characters still have the capacity to display more-lifelike emotions than 3D game characters do.
Maybe "lifelike" isn't the best choice of a word. 3D graphics can certainly look more lifelike than 2D graphics can. Motion-capture technology allows for animation that looks flat-out human. But when I play games, I don't necessarily want to see anything mundane. I prefer exaggerated or otherwise imaginative looks to my games, so I don't think it's coincidental that some of the most memorable-looking, best-looking games I've ever played feature 2D artwork. I'm also glad to have realized lately that, much as I suspected a decade ago, 2D graphics will never completely go out of style.