Ghost of My Former Self

Everyone knows the story. James and Lily Potter gave their lives to save their one year-old son Harry. Sixteen years later, Harry was able to destroy the most hated wizard in the Wizarding World: Lord Voldemort. But, what if Voldemort was never born?

How would Harry's life have changed?

Would he still have become friends with Ron and Hermione, or would he befriend Draco Malfoy? Would he be in Gryffindor or Slytherin?

If Voldemort never existed, Harry's life would most assuredly change. The question is how?