“Judy Jones, a slender enamelled doll in cloth of gold: gold in a band at her head, gold in two slipper points at her dress’s hem.”

“…High in a white palace, the Kings golden girl”

Judy was the ultimate prize “….doll in cloth of gold: gold in a band at her head, gold in two slipper points at her dress’s hem.”

Daisy was, also, the ultimate prize “…the king’s golden girl”

Judy Jones is associated more with her smile and her eyes than other characters are.

“She drew down the corners of her mouth, smiled, and glanced
furtively around, her eyes in transit falling for an instant on
Dexter.” 

Eyes are more associated with Gatsby and Tom. A smile is more associated with Gatsby

“You’re not. I like you. But I’ve just had a terrible afternoon.
There was a man I cared about, and this afternoon he told me
out of a clear sky that he was poor as a church-mouse. He’d
never even hinted it before. Does this sound horribly
mundane?” Later she then asked Dexter if he was poor (“Are you poor?”
“No,” he said frankly, “I’m probably making more money than
any man my age in the Northwest. I know that’s an obnoxious
remark, but you advised me to start right.”)

Daisy strung Gatsby along and she wanted Gatsby cause he was rich, and likewise for Tom

Dexter was a poor boy, hence his caddying job. hen he was 14 he quit, thinking that he was too old for it and later left for university. In the end, he ended up investing in a laundry business and sold it, thus making him wealthy. 

“Dexter borrowed a thousand dollars on his college degree and his
confident mouth, and bought a partnership in a laundry.
It was a small laundry when he went into it but Dexter made a
speciality of learning how the English washed fine woollen golf stockings
without shrinking them, and within a year he was
catering to the trade that wore knickerbockers. Men were
insisting that their Shetland hose and sweaters go to his
laundry just as they had insisted on a caddy who could find
golf balls. A little later he was doing their wives’ lingerie as well-
-and running five branches in different parts of the city. Before
he was twenty-seven he owned the largest string of laundries
in his section of the country. It was then that he sold out and
went to New York”

Gatsby was a poor farmers son. When he as 17 he left home and made a proper life for himself and made his money through buying a chain of drug stores.