Before you unbolt the top three nuts, jack up the front control arm. Raise it a bit. Then take off the top three nuts. They are 13mm.
Once you unbolt the top nuts from the strut tower, lower the jack and remove the lower mounting bolts that you loosened before. It will probably be stuck on there. I whacked it with a big hammer to knock it loose and then pried the mounting points apart with a screwdriver. Now, the strut assembly is quite heavy. You need to maneuver it through and around the brake lines and sensors. They are wrapped around the strut. Great. I found that the best way to wiggle it out is to move the top of the strut towards the front of the car.
Now, at the same time, the brake rotor assembly is going to fall out almost into your lap. This is when it is good to have friends (strong friends, in my case). I strung it up with some bungee cords before even taking the strut assembly out. Like this: