I have always heard about the crazy vascularity you get stacking winny and eq. Of course, your bodyfat has to be low to notice it. Therefore if you are going for a vascular look, put the winny in at the end. If you want to look very hard at the end, then put the anavar there. The eq should still take care of the vascularity.
On a side note, maybe anavar is just as good as winny at promoting vascularity but there is not as much evidence since it has only recently become so popular.