I've watched quite a few, here are some recommendations:

中国式离婚 （蒋雯丽，王志文）

天道 （王志文）

手机 （陈道明， 王志文）

我的青春谁做主

冬至 （陈道明）

黑洞 （陈道明）

玉观音

金婚 （张国立， 蒋雯丽）

国家干部 （王志文）

Of course this is personal preference, but I believe most Chinese (depending on age) will tell you most of these include the best actors in china (陈道明， 王志文，蒋雯丽， 张国立）。 Some of these are a few years old. Since we've had children, there hasn't been much time to watch Chinese dramas these days.