What kind of pencil is best for drawing and sketch, how to pick pencil for artist and illustrator.

What kind of pencil is best for drawing and sketch, how to pick pencil for artist and illustrator.How to choose a pencil to draw for yourself?Many people ask me what kind of pencil I use, well I really have no favorite, really. But if I recalled a few years back, it was probably a Clutch pencils (mechanical with big leads), then sometimes I would use thin lead mechanical pencil. But in life