Best first Broadway show to see: Lion King or Phantom of the Opera?

I have a relative from out of the country visiting. We want to go to a Broadway show but are torn between Lion King or Phantom of the Opera. Have you seen both? Which is the best to see?

I’ve only been to one Broadway show in my life, Beauty and the Beast about 10 years ago, and it was fantastic, but I can’t figure out which to choose now!