In fact, these two cars are not comparable. Because everyone knows that Kia Motors itself is a brand under Hyundai Motor Group.
The Kia Intelligent Sport and the Hyundai IX35 are actually products of "the same chassis, the same engine, and the same gearbox". To put it bluntly, these two cars are actually "the same car, but with different shell shapes and different suspension brands." They are all models of South Korea's Hyundai Group.
So the choice between these two cars is relatively simple: in the end it is nothing more than "choose based on appearance preference".