RVD can make any match seem like a main event while Jericho tends to make world title matches look mid card.
RVD is kinda underrated by some people, but I can think of far more flat out shit RVD matches than shit Jericho matches. For that reason alone I can't pick Van Dam.
Jericho pretty easily. I can't think of much RVD does that Jericho doesn't do better.