Ah, I see that you want to provoke another heated argument with AF supporters throwing Christian Lacroix scarves and Champagne at KLM supporters while the latters replicate with bottles of jenever and Delft houses!

As you probably gather from the thread you refer too, opinions on this are more or less irreconciliable. I would claim that AF is more premium (it still has three classes, you get champagne in long haul economy, kids still get far more extensive free games than on KLM, you get both cheese and dessert in both Y and C while you get either/or in both on KLM, etc ) but can assure you that a friendly rivalry will soon follow and that some people will come up with equally logical arguments to replicate that KLM is more premium after all. In fairness, I have heard exactly the same arguments about BA vs VS, SQ vs CX, LH vs LX and many more, and find it quite reassuring that in the midst of our numerous complaints, we still all seem to have a certain form of affection for our airline of choice whichever it is! Enjoy the contradictory answers you will undoubtedly receive!