I guess I'm lucky in that screen tearing doesn't bother me all that much unless it's REALLY bad. Framerate dips and stuttering are extremely aggravating to me and impossible to ignore. I tried playing Perfect Dark with a friend a few months ago, and that was definitely one of the worst gaming experiences that I've had in a long time. I guess that I've gotten used to much better. Also, those are bad but JAGGIES ARE NUMBER ONE most hated. That's one of the bigger reasons that I despise playing 3DS. Small amounts of them aren't that bad to me, but when they cover the screen constantly, they're very hard to get over to me.