I started reading comics around 1963, shortly after my first grade teacher bestowed the gift of literacy to me.
The Supergirl I grew up with was Kara Zor - El, who lived on Argo city with her parents until a meteor shower destroyed the lead shielding that protected the inhabitants of Argo City from certain death due to the ground beneath the lead being Kryptonite.
She was a great character with much potential, but was rarely written as well as she could have been. I liked her a Lot, though.
Then she died during Crisis On Infinite Earths. I mourned her loss as did many readers.
And we were introduced to ANOTHER Supergirl years later.
I'm not here to dispute just WHICH Supergirl is the BEST Supergirl.
All I want is a Supergirl that is written and drawn well.