Levels is perhaps the most used tools in AE for color correction.
Color matching on individual channels is normally done with levels.
Unless PS curves in AE haven’t any numeric value,and no histogram.
Curves are commonly used for raise or lower the gamma,the S curves for brightness and contrast.
I really see curves and levels like 2 different effects for different type of result.
Obviously my choice is the effect Brightness and Contrast
You all suck, buhahahaha levels rule