I just want to point out that the OP's experience is not the same you would get flying most Chinese airlines domestically.

I've worked in China for almost 7yrs now and when I have to fly domestically a lot of the times I can't get into one of the better air lines due to as this thread stated monopoly on routes.

Chinese domestic airlines have MUCH smaller spaces in between seats than you will find in an American or European airline. Also, they WILL NOT let you sit in the emergency exit seat if you cannot speak Chinese. That second point is a bit of an annoyance to someone who is tall as I am. Due to my work booking 20-50 seats to fly a large group around, I can't even grab a business class seat.

Two of the best domestic airlines I've used are Xiamen Airlines and Hainan Airlines.I believe China Eastern which is also a Skyteam member was a horrible flight for me legroom wise...no way to sit properly.