MIT Shotgun S1 vs MIT AVt MA speaker cables

I've seen a similiar thread before but couldn't find the answer for this question. I can buy one of those speaker cables for about the same price. I use a Krell cd/amp combo with ATC speakers and MIT Magnum MA XLR. The question is which of those two would be a better fit? The Shotgun S1 or the AVt MA? What are the differences between those two? Would love some help on this one.