I have so many favorites so here it goes
Kurrabi - I have every hatchable color including achro, one mutant, and three dye colors
Wyrae - I have an albino names Neurotoxin and a black named Zellios who I morphed myself
Zenrix - I have every hatchable color except achro
Aerix - I have a black Aerix named Meara whom I hatched myself
Sheafu - My newest goal is to get an albino Sheafu and use ageless extract to keep it a baby