I have not used the club88 or Passion House, but I would say in general that the Whitebay and AEYOW offer similar quality to what used to be at Asian Passion. As with any agency there is always some variability and this was true of Asian Passion. However there were a few absolute gems available from AP. Probably the most beautiful girl I have ever been with was thru Asian Passion (I forgot her name). Like 20 years old and a supermodel. I only remember her being here once, it was like 10-15 years ago.
Also in those days, the price was half what it is now, ie $ 140/hh
By the way, the famous Korean Sara (now retired) was also originally with Asian Passion.