i put up a list of the inner energy practise of the different sect according to what was written in the novels and deductions fron their external fighting stlyes. this is my own impression of their qi styles.
there are same terms that i will make clear: pure 'yang' or pure 'qi' means yin and yang in balance. there are five elements and when these 7 forces are in balance , qi is pure and travels easily thru the body.the five elements are fire, wind, water, earth and wood(metal). yin is like snow, cold and soft(coressponds with water and earth), yang is like lighting, hot and hard(corresponds with fire and wind) earth(metal)is a central elemnt linking the other four. yin and yang can be heavy or light depending on the five elements(not yin and yang itself). step refers to level or rate of progression. yang dominant means when qi is summoned, it comes out aggersive like lighting. yin dominant means when qi is summoned, it comes like snowfall turning to avalance. fast uses yang while quick uses yin.
{used some quotes from laviathan}
SHAOLIN: pure 'qi' but yang dominant. the style of practise builds yang energy one step and balances with yin the next step. suitable for the hard external style of shaolin.the best qigong 'yiyinji' uses all of the body's meridiens and channels and all types of 'qi' as one. top qigong method in wuxia. external style is hard and fast.
WUDANG: the most pure 'qi'. the style practises yin and yang in balance at each step. style is soft and elusive but 'qi' can change from light to heavy easily.best qigong taichi 9yang. external style uses soft, precision and borrow force.
E-MEI: pure 'qi' but yin dominant. opposite of shaolin, style practise yin energy at each step and balances with yang the next step. suitable for women. best qigong is 9lightyang. external style uses quick,soft and variety.creates images of flowers in sword.
QZ: second most pure'qi'. comparble with wudang. practise yin and yang in balance with each step. best qigong is Xiantian Gong. external style is hard and solid(opposite from wudang) but second style under zhuo butong had extreme softness and external style contained vacant fist.
ANCIENT TOMB: extremly yin 'qi' unorthdox method against natural flow of qi. focus on 'restrint yang, push yin to extreme'. suitable for women. best qigong is maiden sutra. external style uses quick, light(skill) and borrow force.
BEGGER SECT: varity of styles, at least four different styles under each elder and two exclusive for the leader. 'qi' is yang dominant. external style contain hard(palms) and soft(stick).
KUNLUNure 'qi' is yang and yin. if (male), practise yang till high level and then practise yin till same level and then balance. if (female), in reverse. external style has using two separate forces(yin and yang) together and hard and soft together.
KONGDONGure 'qi' yin, yang and five elements. yang then yin each step with focus on five elements. external style uses all 7 forces together.
HAUSHAN: 'qi' is yin containing yang(maybe link to QZ). qi summoned "starts off indistinct, like the twilight in the sky, but the stamina had great persistency, and the strength would be later released like a storm with devastating power". best qigong is divine art of violet twilight. external style(sword) is graceful and creates images of flowers and leaves.
NORTH HENGSHAN:'qi' is yin followed by yang. external style is <Soft, yielding style emphasizing (agressive) defence. "Using the opponent's power against him, like a needle wrapped inside a cotton cloth", like a Crane. >. yielding is yin and soft, turning opponents power needs yang and aggressive.
SOUTH HENGSHAN: 'qi' is restrain yang to let yin flow freely .external style is<Swift, deceiving and unpredictable style emphasizing speed and trickery"Overcoming the enemy with cunning", like a Snake.>style needs to be light and elsive, yang is too aggresive, greater yin is more suitable.
TAISHAN: 'qi' is yang followed by yin. external style is<Heavy, hard style emphasizing stability and power"Overcoming the opponent by force", like a Tiger.
> yang brings force, yin brings stability.
SONGSHAN:'qi' is restrain yin to let yang flow freely. external style is<Long, grand and powerful style emphasizing bold movements. "Overcoming the enemy with grandeur", like a Dragon>less yin brings more grand and aggresive movements. restrained 'yin qi'is gathered and at high level can be devolped into chill qi used with icy palm.