I've shot both, as I've owned a couple of Black Widow PLs, and my mate owns a Tomahawk. Neither is going to give you a shooting or dead animal advantage. Both are superb. The Black Widow gives you a few more custom options (at greater cost), but that's about the only real difference. The Black Widow is also cut to centre, whereas the Tomahawk is not quite. To me, that makes no difference with the right arrows. So, my advice is to go with the one you like the looks / options of, depending on your finances.