Heh, no. My signature hasn't changed since beta. I suppose I should change it. I actually don't have a marauder or sentinel right now. I played them back when they weren't easy mode in beta.
I play an tankassin, so I am one the guarding the healer. So I have first hand experience in winning a war zone by guarding a geared healer. With the nerf to burst, healers have become the most important part of a WZ.