which is better FFP SQ Krisflyer or UA Mileage plus

[hrs027]

Hi
I wish to know if UA mileage plus is a better FFP when compared to SQ Krisflyer.
I have been a Krisflyer for the past 4 years but not gotten anywhere. I fly 3-4 times from Australia to asia. I managed to reach Krisflyer silver status once but that expired too soon.
I read about UA's mileage plus and was wondering if that would be a better option for me since their points don't expire that soon & I can get to *A Gold status soon. Is this a possibility? I never will fly UA though.
Also in future, I will be taking at least 1 trip/year to europe/USA apart from flying within asia. I mostly fly economy but sometimes business. 1 business for every 3 economy.
Recommendations welcome

 

[Diesellife]

Hi

I have been a Krisflyer for the past 4 years but not gotten anywhere. I fly 3-4 times from Australia to asia. I managed to reach Krisflyer silver status once but that expired too soon.
I read about UA's mileage plus and was wondering if that would be a better option for me since their points don't expire that soon & I can get to *A Gold status soon. Is this a possibility? I never will fly UA though.

If you only achieving Krisflyer silver, how can you get to UA premier executive (Gold Status)?? If I remember correctly, it needs 50000 miles or 60 sectors to achieve it. Which is equivalent to Kris??