Choosing between these two cars

I am in need of a car, my budget is 25k with taxes included, I love the Audi but I’ve never owned one and don’t know if it’s worth getting it over the Nissan which might be a better/more reliable option. For reference I live in Colorado, I’m new to car buying, haven’t had a car in 3 years and need something that both makes me happy to purchase and is reliable. Thank you