2 "chill" babies/kids?

Just curious, anyone out there have 2 kids who were all "chill" or easy to take care of? I feel like everyone I know who has had 2 kids say one was really easy and the other was the exact opposite (high needs/colicky/difficult). My own family was the same -- I was the angel baby and my younger sister was (and still is lol) much more difficult/needy. We're contemplating having a second but our daughter has been so great that I'm really scared that if we ever have a second, they're going to be a nightmare! LOL