I want my first dog, and I want it to be a "proper dog"!?

I am mostly interested in breeds like Rottweiler, Dobermann Pinscher, Siberian Huskey...Basically "big dogs". I don't want a ratty type thing, and I am not really interested in a Golden Retriever or a Labrador, they are sweet but a bit boring. My question is, are the breeds mentioned above too much for a first-time owner? I have read mixed comments on this; I never owned a dog of my own, but my partner has had dogs all her life (though slightly smaller, like Staffies and Bull Terrier).