This is my first Gangi. I've been drinking sake from Yamaguchi for a while now. Gangi has a good aroma, a deep (dark) taste, and is a little sweet.
For me, I think it's Kaki > Gangi.
When I ordered Kido at a bar, I was served Jikin. I was so surprised at the unexpected turn of events, and it tasted so good, I couldn't stop drinking.
(The bar was out of Kido, so they said, "If you don't mind, we have today's daily special sake.)