Speaking with Michaela Jill Murphy, the original voice of Toph Beifong from the 2005 TV show, Avatar: The Last Airbender, Cameron was asked which Avatar was the best. To which the director admitted that since his children are bigger fans of the beloved animated series, he believes that The Last Airbender is better.
https://fandomwire.com/james-cameron-reveals-his-kids-prefer-avatar-the-last-airbender-to-avatar/
Why not? They’re both creative works in visual mediums, even sharing similar genres. That’s enough common ground, imo. Things don’t have to be identical to be comparable.