Below are the results of our thorough investigation into the flatness of various spoons:
Spoon 1: 
Flatness Level: 2/10 (slightly concave)
Recommended for: soups, cereals
Learn More About Spoon 1Spoon 2: 
Flatness Level: 5/10 (somewhat concave)
Recommended for: salads, yogurts
Learn More About Spoon 2Spoon 3: 
Flatness Level: 9/10 (very concave)
Recommended for: soups, yogurts, cereals
Learn More About Spoon 3Spoon 4: 
Flatness Level: 4/10 (somewhat flat)
Recommended for: nothing in particular
Learn More About Spoon 4And so the survey says... it's all about the spoons, baby!
View the Spoon Flatness Index