Well England used to be an absolute monarchy. That means that the Queen's rule is law, she rules with absolute power. Absolute monarchy is almost despotism. However, it's now a constitutional monarchy, which means there is a figurehead, but they don't have any actual power. The Queen of England has less power than the president of the United States (bearing in mind that the president only has 1/3 the power as there are two other branches of government). I don't actually know what current powers the Queen of England has in this day and age, so I'm posting this as a comment as I have no actual answer for you, sorry. Hope my information was helpful.
da pres has all da powa, cus he is black and if u dont lissen 2 him he will keeeeeel u