I used to run quite a lot when I was much younger. In high school & college, I ran track and cross country. In college, cross country races were 6 miles (now 10K), and we averaged 70-80 miles a week training in the fall. In the winter and spring, the distances were shorter, but the speed higher. My favorite racing distance was the mile and half mile, now 1500 and 800 meters. Now, I walk, and I'm happy if I go 2 miles in 38 minutes
.
Shoes are terribly important, but people's feet, footfall, and stride vary all over the map. So the shoes that work for me are probably not the same as for you or others.
I also strongly believe that you should run the stride & footfall that is most natural for you. And find shoes that make that style most comfortable for you. You'll soon know if your shoes are poor – it takes longer to know if your shoes are good for you. I personally like Asics and New Balance, but I spent years trying (and failing) to like Nikes. Adidas were too inconsistent over the years. Your mileage
will vary – so will your shoes.
I was shocked when I first heard about the mid/forefoot strike fashion. I still think it's a rotten idea – for me. I was always a heel striker and my feet pronated. As a freshman in college, I finally gave up on the idea of trying to change my pronation, and ran much better in the process. On a wooden indoor track, 11 laps to the mile, with steeply banked curves, you will injure yourself if you alter your natural running style.