Metagross, Rayquaza, Charizard, Rapidash, Eevee, Vaporeon, Espeon, Umbreon, Mew, Articuno, Ho-oh, Suicune, Celebi, Blaziken, Flygon, Ninetales... among many others.
My least favorites are Weavile, Wobaffet, Flareon, Lucario, Groudon, Moltres, Lugia...