For my faults/stupidity, I am still loyal to CX Marco Polo. As someone who pays for premium travel on CX I guess it's asking too much to have a lounge that's not overcrowded?
At the end of the day, given the unattrctiveness of the Marco Polo Club, CX elites are at least paying $ to CX and hardly going to be credit for regular travel on other airlines. The least they deserve is lounge access. However, a AA EXP or Enrich Gold Member is not contributing much to CX apart from the $30 fee. Given how cr*ppy the lounges are for AA or MH is a CX MPC member ever going to use their lounges if given any choice? Of course not. So it's just one way traffic from AA etc (excl. QF and maybe BA) to CX lounges. Let CX put them all in a special Oneworld elite lounge which is still probably better than anything they are used to with their own carriers.
PS - you're right on SQ KF Gold Lounge and should have made clear it's the concept of separation I was trying to get at and not asking for wholesale copy and paste
PPS - Rabble bad choice of words. Changed. I don't think I'm better than anyone but as a CX D I do think I deserve to be treated better than other OWE by CX.