ITT: You favorite features of every Gen

Gen 1: The music and all the nostalgia, along with the classic pokemon
Gen 2: The innovative new features, like new types and pokeballs, and new evolutions to old pokemon
Gen 3: The trumpets, the legendaries, and the Battle Frontier. Not to mention Red/Green remakes.
Gen 4: The physical/special split, the new pokemon, and the region itself, along with the Gold/Silver remakes
Gen 5:The graphics, the story, and true sequels