The portable console war in Japan has always favored Nintendo's 3DS over Sony's Vita, but never quite like this.Last week, the Vita hit a new all-time low in the country, selling only 4,021 units. By comparison, the 3DS sold nearly 47 times that many, at 187,077.The numbers only tell half the story, however: 3DS sales were bolstered significantly by the release of Nintendo's Animal Crossing: New Leaf, which debuted at number one on the charts with 721,786 copies sold.Still, it's clear that Sony is having a very difficult time selling anyone in the country on the Vita, and a lack of desirable software in the region isn't helping matters. The Vita had no new releases last week, and none of its games appear in the top 30 chart. There are, by comparison, fourteen 3DS games.For a closer look at the numbers, last week's Japanese sales charts are available here