Does the American accent or British accent sound better?

I grew up with a thick Australian accent with a drawl I dislike, and have been consciously trying to change it for a while. The problem is I tried to make it sound more American at first but keep getting drawn to speaking "Britishly". Now it's a Frankenstein of all 3 accents and I don't know what to go with.

Some points for both:

▪︎ American accent sounds "cooler"

▪︎ British accent sounds more "proper and elegant"

• Australian accent sounds more "relaxed" (but I dislike this for myself, personally).