Virtanen has a wicked release on his wrist shot, and he can power through down the wing. I find his junior days very comparable to how Iginla played. Booth does not have a very good shot, he is physical though but I didnt see him bowling players over with regularity like Virtanen.
As a 6th overall pick, I really think he can become close to an Iginla type player. He has a quick release (maybe not as good as Iggy's, but still wicked), really mixes it up after the whistle=great compete level. Virtanen's potential is sky high IMO, based on what we have seen thus far. I have not yet seen a Canucks prospect that has his mix of Speed, Skill, and physicality.