Gielinor is the perfect world. It was the last world that the Elder Gods created before going to sleep. Armadyl's home world was destroyed and most other worlds have been destroyed or aren't good for life. or no much. Every world we know has been extremely harsh in one way or the other. Gielinor, life can flourish.
Abbinah - Aviansie's Homeworld, was shattered. There are hardly any resources and very little water.
Freneskae - Mahjarrat/Seren/Zaros/Mah Homeworld, was once the perfect world. It is now a dead planet because of constant war.
Iaia - Dragon Rider homeworld, is peaceful and a nice world, but it is mainly marshlands which isn't great for the Aviansies.
Infernus - Demon Homeworld, is a planet with no life other than the demons. It is mainly liquid fire and rock. Obviously too harsh.
Kethsi - Was was completely demolished by the Dragonkin and most of it is in ruins.
Leng - Is an inhospitable frozen world.
Mazcab - Has been drained of most of its anima by Tuska and is overran by the Airut race.
Naragun - Guthix homeworld, destroyed in the Naragi God Wars.
New Domina - Icyene, can be a very harsh world and deals with a lot of travel.
Renmark - Home to Centaur and Unicorns is probably toxic or something because Saradomin had to find a new world for the species of the world.
Tarddiad - Elven homeworld, may be good, but it seems like it is always dark, so it may not be good for the Aviansies.
Teragard - Human homeworld, is probably always at war when there is a tear in reality that goes to the abyss.
Vampyrium - Vampyre world, is probably the best alternative world for the Aviansies. But again, it may be too dark for them.
Yu'biusk - Home to the goblins, ogres, ourgs, and orks. The world is impossible to live in. And is completely dead.
Zanaris - Is the moon of Gielinor. So it isn't really a big change.
So as you can see, there are some good worlds, but Aviansies have specific needs. Most worlds have been destroyed. Very few remain.
Come the Sixth-Age, the world will need the World Guardian.
17-Mar-2017 07:06:44