How does Avatar's Pandora compare to our Earth?

Outwardly, it would appear that moon of Pandora is a paradise of a world with living conditions ideal for supporting human life. It has beautiful oceans, striking geological features, and a highly diversified range of both flora and fauna. These qualities are also attributable to planet earth.
However, there are some key differences which set Pandora apart from earth.

CREDITS:

Avatar (2009)
Twentieth Century Fox (presentation) (as Twentieth Century Fox)
Dune Entertainment (in association with)
Lightstorm Entertainment

https://james-camerons-avatar.fandom.com/wiki/Pandora

https://james-camerons-avatar.fandom.com/wiki/Alpha_Centauri_System

https://planetplanet.net/2014/11/18/real-life-sci-fi-world-6-pandora-from-the-movie-avatar-the-habitable-moon-of-a-gas-giant-planet/

https://james-camerons-avatar.fandom.com/de/wiki/Unobtanium

followmyfreedom.files.wordpress.com (Pandora the Beautiful) (Stephen Lang)