Looking at the OP, I am SHOCKED at how things have changed.
1. AM lounge has had HUGE cutbacks: barely any food is served now
2. DL lounges have had HUGE improvements
3. AF/KL have had some improvements as well, their offerings are decent now
4. KQ have a decent lounge after the renovations
But I agree with some others here:
4. KE is TBIT is a complete joke, even as a Priority Pass lounge. KE outside of ICN (eg JFK) is in general sucks
5. So many mediocre airlines in Skyteam mean mediocre lounges
Overall, I'm done with Skyteam. Their offerings are a joke and continue to get worse overall. I will no longer be renewing Elite Plus after 2017 and going back to Star Alliance.