I got my second pylon from a 3D printer back today. I thought I would take a few pictures and then give my impressions of the comparative quality and value of the "prints". I will eventually gather all of this information into a single page one all my items come in. Now onto the comparison.
We can see that when placed together they initially appear identical other than their color. I'm still sad about the dimensional mistake on the powerfields, but the angle is correct and both pylons match it exactly.
The greenish pylon is from Ponoko and uses their Durable Fine Plastic. The white pylon is from Sculpteo and uses their Detail Resin. Both of these materials are resins extruded from a print head that are then cured with UV light.