How to distinguish Yan style from Liu style? Which one is beautiful?

The font style of Yan style is steady, the vertical strokes are vigorous, the structure is round, the Liu Ti style is elegant, the middle palace is tight, the strokes are like willow leaves, the strokes are generally meaty and bony, and the structure is like bamboo in the wind, so it is called "Yan Gu". From a good-looking point of view, different people have different views, and personally prefer Liu Ti.