I'm currently designing a news website based on sports betting. The sites content is mainly composed of blog posts from industry journalists. These posts are split up into 5 categories for each sport.
There is currently a debate about whether the home page slider should scroll through each sport, showing a generic photo of the sport. These generic photos link to the specific corresponding page. I.e.
[Generic football photo] --Links to--> Football page
[Generic tennis photo] --Links to--> Tennis page
This is essentially like a nav bar, but instead a scroller as it provides the exact same function as the navigation.
The other side of the debate (my side) is that the slider should scroll through the 6 sports, displaying the latest article for each sport. The image should not be generic, but should correspond to this latest article. The slides should link to said article as well - as opposed to the specific sports page.
[Image from Latest Football article] --Links to--> Latest football article
[Image from Latest Tennis article] --Links to--> latest tennis article
I know that my way is better and more user friendly. What however are the reasons for this from a UX point of view?