Most important in causing coronary artery disease (CAD) is
LDL

LDL concentration in blood has a positive correlation with the incidence of cardiovascular diseases.
LDL-cholesterol is deposited in vessels and promotes atherosclerosis.
Therefore, LDL is called 'bad cholesterol' or 'lethally dangerous lipoprotein (LDL)'.
HDL
LDL
VLDL
Triglycerides