Yep bigger is better. They also don't get hot like smaller cables, starter spins better =faster starts, if you have a winch you definately want the biggest cables you can buy or build. The little pads steve mentioned are good for keeping the terminals corrosion free, the plasti-coat I mentioned is pretty much the same stuff as the liquid electrical tape, just comes in bigger quantities and in colors. Shiny terminals are good then once you put them together and tighten them down you can coat them but if you then have to take them apart, you get to start over. I usually use a di-electric grease for that part of the seal em up.