While DKC 1 may be objectively more important, I personally prefer DKC2. The original already had TONS of personality, but 2 really takes it to another level. The music is unreal, the levels are gorgeous, I love the pirate theme, and the concept of Diddy and Dixie having to save Donkey Kong is so cool. Obviously, a lot of games since (Super Princess Peach, Luigis Mansion, others spin offs that I just cant think of right now) have done this concept of a sidekick needing to save the main character. And I’m sure some games have done it before DKC2. But the tone of DKC2 is really what sells it. The music and atmosphere of Diddy and Dixie traveling together on there quest is so unmatched. The Donkey Kong Country series always has this weird thing about it where it seemingly unintentionally, has very emotional games. They aren't trying to be emotional, like there isn't any dialogue or real story elements that suggest stakes or drama. It’s just through its ascetics that make it feel that way. All from a game series about monkeys angry whenever anyone takes there bannanas.