3Doodler ABS vs PLA Chart
The folks at 3Doodler, the innovative 3D plastic pen that provides you with tremendous artistic freedom, published a helpful comparision infographic covering the strengths and weaknesses of ABS and PLA plastic filaments used for 3D printing.
Although many of their observations only apply to creating objects and art with the 3Doodler pen, it is quite useful in understanding how the two plastics perform, and why you might want to select one over the other.
In my particular case, I'm opting for PLA, primarily because that's all I use in my Tantillus printer, so I have a wide selection of colors already on hand.
Related links: ABS vs PLA: Head to Head - The 3Doodler