Who would you pick?

I’m a big Jeopardy fan, have been for years.  A friend of mine and I were talking today and the topic of  games show hosts can up and he asked me “if Alex Trebek stops hosting Jeopardy who would be a good replacement”? You have to answer with the first name that comes to mind, male or female.  The first one I thought of was Llyod Robertson CBC national news anchor.