To be considered leggy, the ratio of the torso and leg should be 45/55. It’s quite common with westerners, but rarer with Asians, except Koreans.

Besides the proportion, they must have good shape, not too fat on the thigh, smooth and not boney on the knees, some even have irregular shapes of bones on the knees. Not muscular on the calves, narrow at the ankles....

That would be my ideal pair of legs, especially with silky smooth skin, no marks or scars...