Let me put in
- Lounges in Paris way above Amsterdam - as almost everyone seems to agree here. Indeed, like one of the posters I sometimes have trouble finding something edible in AMS and Paris is always ok
- KLM Y, particularly short haul - if you have status and can score Economy comfort, for me night and day difference with the short pitch of AF Y. Wine in Y on AF is better - that is, if they serve it (as noted in another tread, wine is gone in Y on various short AF flights).
- Y long haul - I cannot see a lot of difference
- J short haul - not enough experience to know the difference. Had the KLM Wanders box 1-2 times and nothing special indeed.
- J long haul - do not fly often enough to have strong feelings here, but apparently the J seat offer at KLM is more consistent (all lie flat, in the process of ensuring all-ailse access) as of AF (read stories that they still have angled lie flat seats flying around)>