Van Dijk has been elevated to absurd levels of praise because the level of defending other than him is generally quite poor right now. He's obviously a very good player but he doesn't need to do as much to stand out as people like Rio/Terry/Vidic did, not only in the PL but on a global level.
In the peak of Vidic/Rio/Terry etc, pretty much every club in the top sides had a very good defender. Liverpool had people like Carragher/Hypia, Chelsea with Terry/Carvalho, Arsenal with Toure/Gallas, Tottenham had people like King/Dawson etc. Now I'm not saying that the level of that selection is World Class but it's a much better spread than we see now.
In the peak of Vidic/Rio/Terry etc, pretty much every club in the top sides had a very good defender. Liverpool had people like Carragher/Hypia, Chelsea with Terry/Carvalho, Arsenal with Toure/Gallas, Tottenham had people like King/Dawson etc. Now I'm not saying that the level of that selection is World Class but it's a much better spread than we see now.