Sunshine: amazing park, looooong laps.
COP: open april 4 and 5, awesome beginner park, good features all around. Might be warm and slushy/sticky.
Louise: beginner stuff a little lacking.
For you I would go to COP, probably best, safest, confidence building features in the area. Keep in mind you'll only be able to go on the weekend of the 4th and 5th because they're having a special weekend due to recent snow. Wax your skis before you go.