>>2787488cast iron if you've got it, nothing holds heat better and more evenly.
if you're going to make your own spit to roast game you should use the freshest, greenest branches possible so they don't burn up easily. make your fire using large split logs, at least 1/4 of a trunk but ideally 1/2 a trunk (i.e.only splitting the log one time). this will result in the largest natural coals which will glow the longest and radiate the most heat. small twigs and bits of wood result in a very small coal bed which cools off faster, so you need to add more wood and thus more flame = more burnt food and burnt spits.
if weight isn't a factor, get a cooking tripod or a cowboy cooker (basically a rod with a little grate that slides up and down it. you can also get lightweight stainless mesh grills that will never burn through.
>>2788266damn that looks comfy