I have commented on the effectiveness of forks and even sporks before, and while the former is great for stabbing things, and the latter is great for both stabbing and scooping, the spoon is still a powerful piece of cutlery. You may think the hybrid spork would win out due to its extra stabby ability, but it's a very hard call to decide what is the best of the regular cutlery items.
Spoons are useful for when you absolutely need to scoop up liquid or various other foods in a sloppy form. Sure, you could eat a yoghurt with a spork, but you'd better be prepared for leakage from its forky tines. Spoons have a concave receptacle which will safely hold all of your soup, custard, oatmeal, and countless other foods on its passage from bowl to mouth. The spoon doesn't just stop at picking up liquid foods. Anything that is hard to stab at with a fork can be tackled with a spoon. Jelly, peas, cereal, without a spoon we would just be hacking and stabbing at meat like neanderthals. So here's to the spoon. An essential member of the cutlery family.
My rating: 5/5