Like I said, more than one way to do it and everyone has their tastes - certainly not trying to tell you what you like.  Have toyed with the sous vide with a cooler with about 140 deg water with the steaks in a ziploc bag.  Let the steaks get up to temp and toss them on the grill for about 2 minutes a side and you have a perfectly done steak.  Vary the temp for how you like them done, it is a very effective way to do large groups and get them done the way people want if you have the proper equipment.