Personally I like to start casting cranks first, usually from an anchored position, and then I move to jigs or any other kind of slower livebait presentation. Hovering on the top-side of the dams, controlling your position with a kicker or trolling motor is also an excellent way to get on fish as it allows an angler to cover more water than is possible from an anchored position and mobility remains high.
So which is best? No one is “best.” Whatever catches fish. Wingdams are easy to fish once your boat control is top notch. If its not… well, they’re no fun. So I usually suggest a first timer or relatively new angler stick to fishing anchored first and then progress from there.