Marillac's is the easiest, most popular run down Shirley Lake.
It has the most consistent pitch, until you reach the last portion where it steepens.
All of the Tree runs are bordered by trees, so they are good options on storm days.
There is a road on the left at the bottom near the slow sign that will give you an easier option at the bottom.
The last steeper pitch gets more moguled and scraped off at times due to the increased pitch and skier traffic.