>>15636549Gen 1:
Articuno
Zapdos
Moltres
Mewtwo
Mew
Gen 2:
Raikou
Entei
Suicune
Lugia
Ho-oh
Celebi
Gen 3:
Regirock
Regice
Registeel
Latios
Latias
Groudon
Kyogre
Rayquaza
Deoxys
Jirachi
Gen 4:
Mesprit
Uxie
Azelf
Dialga
Palkia
Giratina
Heatran
Regigigas
Darkrai
Cresselia
Manaphy, (and by extent we may argue Phione)
Shaymin
Arceus
In the past I would have been tempted to put Rotom, but as we can now see in Gen VI, Rotom are much more common then they were previously.)
Gen 5:
Victini
Cobalion
Terrakion
Virizion
Keldeo
Reshiram
Zekrom
Kyurem
Genesect
Meloetta
The little cutie!Gen 5:
Xerneas
Yveltal
Zygarde
And if we are to believe the leaks, as I do
Diancie
Volcanion
Hoopah
I hope this helps you OP, I like surveys.