In this post I'll give some of my impressions of each service along with some of the pros and cons.
Amazon Cloud
- Low price plans for budget-minded folks
- Excellent support for music storage and MP3 Cloud Player
- Integrated seamlessly with the Kindle for music and photos
- No Blackberry support
Dropbox
- Great integration for eBooks (O'Reilly, Smashwords, others)
- Productivity integration (Nozbe, IFTTT)
- Support for every platform that I have: Linux, Mac, Windows, Android, Blackberry and Kindle
- Mailbox and Carousel apps for Android and iOS gives you extra free storage
- Has a Python tool for running on a headless Linux installation, great for moving files up to the server
Box
- Better suited for business with integrated apps
- Support for Blackberry
- Highest price of all services reviewed
Copy
- Support for Linux, but the client seems to be buggy
- Developed a client for the Raspberry Pi
- Can split the cost of a shared account between users
- Mid-priced, could be better
iCloud
- Windows, iOS and Android clients
Google Drive
- Native integration on Android devices and Chrome OS
- Lowest price of all services I reviewed
- Works best with Google+ accounts, photos, Google Docs
OneDrive
- Native support for Windows 8, Windows Phone, good for Win 7
- Supported clients for iOS, OS X and Android work well
- Mid-price, can earn free storage using Bing as your search engine
- No Blackberry or other support
So, the bottom line is that I'll eventually consolidate everything on Dropbox. The biggest selling point was the available clients for all the devices that I use. Works fine on Linux, Kindle and Blackberry, which were the hardest to find support for. Will probably keep the Amazon Cloud since it's dirt cheap and still enjoy using the MP3 music streaming on the Kindle.