Best Power Bank from Anker?

Hi guys! I’m not specifically looking for capacity, but what battery is best performance wise in your experience?

I have the power core 20100 which is a really good battery which is able to charge my iPhone multiple e times and also my iPad. My only gripe is the size and weight of it (it’s quite large and heavy) but this is to be expected for a large capacity battery. I have also used the power core 10000 which can still charge multiple timesb(although obviously less) but is much smaller. Based on this, I would choose the 10000 as it’s smaller and more portable but still able to charge your phone multiple times and your iPad.

Hope this helps!