I run a burly ninja. It hurts on the speed/jumping, but a lot of times, I can bamf out in front of a crowd and walk away. When I am flanking, I would usually rather have a nimble, but I like being in it, so the burly works better for me.
Screw body armor though. I've come to realize that by using it, I am giving too much up in that support slot. Motion sensors or hatchet are better for the ninja, imo. That said, I've been wanting to give the toxic gas a whirl.