Which is the best and most trusted? Cloud mining or signature campaigns?
Obviously, signature campaigns is more trusted compared to cloud mining. And besides, it's more safer and no need to invest with signature campaigns, unlike with cloud mining that it takes so much risk, because you have to invest with it before you earn money from it.
And doing cloud mining needs some fortune to have a complete set but the ROI will depend on the coin you'll mine. So if you think you can face all the consequences behind it then give it a try and see how far will it go. But if you have none of these better focus in signature campaign and do trading, these will be more profitable even though you don't have passive income as mining can give.