Ask HN: Best approaches for Javascript game graphics?

I'm wondering what the most viable approaches are for 2d (or 3d) graphics in straight browser Javascript?.

Canvas, SVG? Are there other straightforward approaches that offer primitive graphics operations like drawing lines, circles, pixels? Experiences and thoughts on this much appreciated.

(I recently wrote a dinky little javascript game [plug]messynotebook.com/?p=71[/plug]. Straight CSS+DOM worked for me in that case, but I'm looking into better ways of doing it next time.)