As a world history teacher, I've always thought the Warring States Period through the rise of the Han Dynasty was terribly interesting, certainly no less than the various feudal kingdoms of Europe. While I'd still like to see more historical fiction from that era (I'm sure there's some in Chinese, I just haven't seen much in English), it's fertile inspiration for a fantasy series.
I'm not up to date with Chinese contemporary novels since I migrated to Australia since 12 and since then had just been reading English novels on the main. But from online Chinese novels that I do read now since the last 5 years, historical fiction seems to me to be an undernourished genre in Chinese. It's a strange thing cos 2 of the Four Classicals fall into the genre of historical fiction- Romance of the Three Kingdoms is obviously about the Period of the Three Kingdoms and the Water Margins is also set about the Song dynasty and stars main characters that are a mixture of real and imaginary characters according to Wiki (For a long time, I wasn't sure of this point but I think Wiki should be relatively trustworthy on broad points like that).
Anyway, talking about historical fictions/epic fantasy based on ancient Chinese history, I think I saw an ebook series about the Warring States Period in my random browsing (the link is here: http://www.amazon.com/The-State-Warring-States-Book-ebook/dp/B00B27S3P4
Personally, I'm always cautious of fiction based on ancient China or Oriental setting written by Anglo-Saxons. They don't speak to me in a core way that really convinces me that I'm in an Oriental setting as opposed to a fake Oriental setting as observed by outsiders. So I haven't read this series, but just thought you might be interested given your own personal interest in that period.
On a slightly different track, there is this Jap author who write pretty good Jap historical fiction. I've only read his Taiko which really read like an epic fantasy to me except that it's based on a real historical character. Warning though is that people not particularly familiar with the Warring States period in Japan might not confused with all the Jap names in there cos it stars a massive cast. I assume that's no impediment to you, Dozus.