What version of 1984 by George Orwell should I get?

I want this book so bad because I have heard a lot about it and it has to do with some Muse songs. (I love Muse) I went onto the Indigo website and they had like ALL these different ones like these addition ones. It was really overwhelming and I don't know if they are all the same or if they are different. I know there is the original that came in the the 50's then one that came out like a few years ago. Is there a difference? But I also saw one where it has all of George Orwell's books in one. Idk I'm just really confused and don't know which one to get. Would it be better to get the one with all the books in one or just get 1984?? Please help me clear this up.