III: Breloom, Gorebyss, Absol, Altaria, Catform (weather forms), Latias
IV: Rotom (original, fan and oven), Leafeon, Gallade, Porygon-Z (the Johto cross-generational evolutions are cool and useful, but their pre-evolutions look better)
V: Mienshao, Whimsicott, Lilligant, Zoroark, Reuniculus, Swanna, Galvantula, Braviary, Keldeo
VI: Floette, Heliolisk, Meowstic (male), Trevenant
VII: Oricorio, Komala, Mimikyu, Lycanroc (Midday), Ribombee, Tapu Koko, Nihilego, Alolan Marowak, Alolan Ninetales, Alolan Sandslash
As you can see, VII beats V, which is impressive given the smaller roster (although certainly, the Alolan forms help).