And at the same time, there are characters who don't have something so important to their move set like a Marth jab, or a Bowser uthrow, or in certain cases they do have something resembling it but their move set just doesn't fit well with it, like Zelda's d/utilt for example where the rest of her aerials outside of nair are just so slow or precise for moves to flow together well (Seriously Sakurai, get rid of those horrible moves, just replace them with something that does consistent damage). Falco has plenty of great tools, but no good way of ensuring that the opponent is close enough to him to allow him to utilize them because his lasers are garbage.
The characters that are good don't have to have X broken move, but they need something that allows them to use effectively use their tools. The more of those you have, the better off you'll be.