Honestly each case will be fine, but If you really want me to pick a case, Honestly the Cooler Master H500 looks freakin awesome! I love the two big fans on the front and the way it looks is fantastic. The FSP I would also recommend as well, but the FSP case has somewhat room of cable managment, the H500 looks like the same with the FSP for room. I personally picked the FSP because I loved the simple black design and the armor(ish) style on the front, and if you're looking for airflow the H500 would be for you. Although the H500 looks like a bit of less holes to fit through. Also, I would recommend a 1060 6g against a RX580, but if you found one for cheaper then I understand, and if anything try to get 16gig, but thats just me :)
The FSP case is very good with the airflow, and I am sorry about the late response, and the Stratos looks alright for airflow, the FSP case has little airflow holes infront of it for the fans to suck up
