Does anyone know where I can find a site where the below airline's frequent flyer program's pros/cons are listed?

Air Canada AeroPlan
United Mileage Plus
Singapore Airlines KrisFlyer
Ana Mileage Club

I've found a LOT of sites where they compare US airlines programs with another US airlines. If thers any international comparison, that you know of please give me the link.


Also.. what is the mileage expiry for those programs?
Which one has the longest mileage expiry?

Thank you