Well, i would go for neither of them, as both of those companies have low resale values. It is true that Nissan has higher resale value than Kia, but both of them have low. As someone said, that a car doesn't matter as long as you like it, but you also need to look after the resale value. The two companies with the highest resale value are Honda and Toyota. I would recommend these 2 out of all.