Which Dragon looks best Shiny?
Definitely Rayquaza. I really can't say why, but I love it's color scheme.
On to the topic at hand...I really can't imagine seeing them as dragons when they look more like serpents--not saying it's impossible--but I prefer for them to be considered snakes. And I don't recall seeing their names under the Dragon Egg group :/
I like Shiny Latios and Latias, they're cool! And it matches the forecolor.
The fact that they're in the Dragon egg group is a controversy...