What do you find more exciting? Knockout or Submission

Personally I think in a MMA match there is nothing more exciting than a good match up. Having to evenly matched players fighting against one another truly shows the greatness of this sport. These fighters train harder and tougher than any athletes in the world. I find the knock out more exciting and eye catching than a great submission. There's nothing more exciting to see someone work so hard and then all it takes is one hit and all that work goes away. Respecting both the fighters for stepping up to the challenge is in everyone's minds but seeing one of them get there lights knocked out, is priceless. I take nothing away from the submission game cause I think the ground game is also very exciting. I respect all the technique that is required to get positions and to sweep your oponent. Don't get me wrong I get excited seeing someone get tapped out and screaming in pain cause there arm is about to get torn from its socket. Which one do you think is more exciting??????