There are many cloud drive services out there. These services have a number of different pluses and minuses. My focus on this blog is for the individual entrepreneur so for those purposes the best I see is Google Drive. I call Google Drive the "daddy" when it comes to cloud storage, because it is not only one of the cheapest ($2/ month for 25 gb of storage ), but it also brings integration with Google services. With the option of a folder that is on your computer that can be synced with your Google drive folders, it is the best I've seen.
ES file explorer on Android has a great cloud browsing feature for Google Drive and many other services. Using this app will allow you to share files from your Android devices to all of your computers!