I run both - some from a manifold and some with their own pumps.
Personally I advice against manifolds, because some media requires adjusting the flow to a certain level, sometimes as a control on its strength like with GFO and Biopellets.
This means that with a manifold, every time you make a change in the flow of one consumer - you also influence the flow in others.
But like I said earlier, I use both and it is manageable.