Key is to found near the iron which takes about 5 moves extra, that city became Luoyang for me while Sun Ce's Shu became Xu Chang (I stupidly built the Silk Road in Xu Chang and thus couldn't build Mo Ling).
Order of elimination: Liu Yao (opens up the whole Jingzhou), Yan Baihu (who was building in my home turf), then Sun Ce. Zhang Lu had the foresight to build a city in Jingzhou just limiting Liu Biao's growth, so I captured his 2 cities there. Then Liu Biao (took a long time due to swift bowmen), Zhang Xiu (who had the emperor), Yang Feng, Liu Chong, Liu Bei, Lu Bu, Cao Cao (took a LOOOONG time since he had plenty of heroes and garrison halberdiers, not to mention tiger riders), Kong Rong, Yuan Shao, Gongsun Du, Gongsun Zan, Heishan Bandits, and finally Zhang Yang. I just couldn't resist DOWing on Zhang Lu again since he was busy fighting Liu Zhang.
This is probably the most developed southern China in my games so far.
BTW, the only free "educative" buildings I got were schools at city size 4, no official schools, advisor mansions, observatories, nada. Of course I got the Yellow Crane Tower. Rather weak unique power IMHO.