The benefits of a plastic spork are that your pots will be safe from scratches and it's very lightweight.
Primus says:
If you are looking for low weight and versatility this is probably the tool for your the next trek or adventure. The combination of a spoon, fork and a knife makes it suitable for both cooking and eating. Made from durable and BPA-free Tritan® it is both dishwasher safe and will not scratch the non-stick cookware.
Primus' TrailSpork Tritan is very strong, even for a plastic utensil. It has decent depth to the fork's prongs and the shovel shape is easy-to-use and nice to eat from.