What is similar about the Jesuit and Dominican Orders?
Well, they were both founded by Spaniards, St. Dominic for the Dominicans, and St. Ignatius of Loyola for the Jesuits.
They were also both founded to combat heresy: the Dominicans to fight the Albigensians, and the Jesuits to fight the Protestants.
What is different about the Jesuit and Dominican Orders?
Well, have you met any Albigensians lately?