Given the choice, would Kokondo or Kyoukushin karate be the better choice?

These are the only two styles offered in my area. Both dojos have a reputation for having good instructors. I'm impressed with the overall toughness of Kyokushin...it seems it would be a practical self defense art, and the training is very rigorous...as much so or even more than boxing. All I know about Kokondo is that it has roots in Kyokushin, but is it very practical for self defense?