Yah, familiarity may be the issue.
I'm definitely not knocking the atemoya. Atemoya is one of my favorite fruits. I'd say that my 2 favorite Florida fruits are atemoya and mango, in no particular order. But the cherimoya takes the top spot of the 3. Lychee might take #4.
PS, lychee has an acidic component to it too, but the flavor isn't as complex as the cherimoya. Don't the asians like lychee or something?