Who is worse: Dudley Dursley or Draco Malfoy?

Neither. At the start of the series both of them hated Harry and was jealous of him. This was beacuse of their upbringing. Being raised by the Malfoys and the Dursley, they had a very spoiled childhood. read more

But seeing from Harry's point of view , when compared to Draco Malfoy, Dudley would seem like a well behaved child. But the truth is that both are most accomplished bullies in their respective schools. read more

He’s worse because his rearing provides him no excuses. Both Dudley and Draco are products of their upbringing. James’ parents may have spoiled him, but not to the damaging extent Petunia and Vernon Dursley spoil Dudley. Draco is the victim of generational racism and a criminal father. read more