Warren Johnson pointed something out to me last year when I was thinking about having an old 10.5 car I have converted to strut. He asked how many formula one cars I'd seen with strut front ends. He went on to say, struts are lighter, and make more room for headers. Prostock even recently went to some type of a arm, strut combo for a while.

My car is all round tube with a short section of factory frame rail molded around the tubing. The A arms are custom, but the knuckles are 69 camaro. The car is two fingers on the wheel stable. Moral of the story was no strut can handle as well as an A arm, but at a cost.