HSV/HSL and CIE Lab are useful for different reasons.

HSV/HSL are convenient editing models. They separate hue and saturation in a way that feels intuitive, so they’re commonly used for color pickers, quick color correction, and making lighter/darker variants of a chosen color. But their brightness/lightness component is not perceptually uniform, so equal numeric changes do not correspond well to equal visual changes.

CIE Lab is designed to be much more perceptually uniform. Distances between colors in Lab better match how different those colors look to the human eye, and its lightness component is more meaningful for accurate color transformations. That makes Lab more appropriate for color science, comparing color differences, and edits where perceptual accuracy matters.

So in practice:

• Use HSV/HSL for intuitive, creative controls and UI tasks.
• Use CIE Lab when you need perceptual uniformity or more accurate color adjustments.

HSV/HSL are easy and useful, but not good models for judging true brightness or color difference. If the choice is strictly between HSV and Lab for accuracy, Lab is generally the better space.