Which artist is better? Seal or Sade?

I was quite surprised to realize that there are a lot of people who are fans of either artist who want both artists to perform together. Well, I'm one of them. I've been a big fan of Seal for all my life, and I used to think that he is the best artist ever, but when I first listened to Sade's "Keep Looking," I noticed that that's a tough decision to make on who's better. So in your opinion, which artist do you think has the better lyrics, tunes, voice, humor, looks, and overall quality of music? Seal, or Sade?