Which should I pick for running?

Do you mean one for a race? If so that won't work as well. If you use one pair of shoes for both then they will be worn out faster and you will be buying shoes more often than if you were to buy the right pair of shoes for each. Shoes usually last 500 or so miles, unless you drag your feet like some people haha. Good Luck. I like Mizuno the most and I have a pair of Mizuno elixir wave. I love them and they work great!