)
Yes, in short.
I'd be careful about comparing it to something as established as Avatar, because you'll get a swarm of folk saying you can't compare them because they're different cartoons with different intentions.
And i think g5 could be as good, but it would require talent, vision, and creativity that i just don't think is in Hasbro's grasp.
Especially in the realm of 'complexity'. which both most fans and creators of the show treat much like radiation poisoning.