Although I'm taking advantage of the generous amount of free storage on both of these, I've been simplifying as much of my digital life as possible, including online storage. So, I'd like to narrow it down to one, buy a TB of space, and be done with it. Each has their own advantages; Google's UI is so easy and desktop-like, especially with the recent interface changes (the "new Google Drive.") Google also allows drag and drop of nested folders which is huge if you like the old multi-level folder arrangement. OneDrive doesn't yet allow that, and although you can create your own trees, the folders have to be populated individually. Also, OneDrive limits individual file size while Google Drive allows up to 5TB file uploads (Google Docs are maxxed at 50MB or 100MB depending on app). Speed-wise, I noticed a big difference when uploading large numbers of files. Individual big files seem to upload at the same speed (my cable upload speed is a pretty consistent 11-12 Mbps) regardless of file type; I've tried numerous test runs of uploading the same files to both services, and small numbers of big files upload at almost identical speeds. As the file count goes up, however... 34 files (29.0MB): GD - 1:10, OD - 0:29 57 files (41.8MB): GD - 1:26, OD - 0:36 94 files (37.7MB): GD - 2:07, OD - 0:27 There were more tests like this, but all continued in the same vein. Not that big of a deal, unless you have massive numbers of files to upload. And then there is price. Until this month, Google had the upper hand (not considering Amazon Glacier, but that's a different kind of storage). So one TB on Google (as of July 18, 2014) is $9.99/month or about $120/year for the storage and nice interface. MS really made a splash this month with the MS Office package. $9.99/month or $99/year for up to 5TB per household plus Office 365 on up to 5 devices. I'm down to two reasons for keeping Windows/Parallels on my iMac, and Office is one of them. This offer seems huge to me. Assuming of course, MS keeps the price where it is, I'm not sure why to stick with Google, other than the nice interface. And yes, I can use Google Docs for simple stuff, but Office is really the standard. Like many folks, the advantages of Office are too many to give up. If you've shopped online storage and have other ideas or stuff I've missed, please chime in.