According to your link, China Eastern wins on both counts. China Southern takes it for pax kms flown however.
Not my link! It was straight from wikipedia! China Southern Airlines - Wikipedia, the free encyclopedia
I clicked on the link in your first post, which is different to this link.
If it gives QF the capital to expand and renew the business, it would be a welcome development. Plus, I tend to think a China Southern stake would a) not be a controlling stake; and b) more likely to allow QF to develop itself rather than just marketing EK.