I have a huge problem with fictional aliens, especially the ones that comes to earth and that we always beat for a reason or another... seriously if they have the technology and the intelligence, to travel between stars with such an ease, it means that we human would be insignificant to them heck we would be less than a germ in terms of intelligence to them, and our planet is nothing exceptional to begin with, in the universe there are Crystal planets, water worlds ....ect ect that have much much resources and more interesting than ours....
by the way, the race to rule the galaxy or the universe is humans since we tend to always find a solution to beat these aliens, dispute that they are more advanced than us....thank you Hollywood