When comparing Dropbox vs Google Drive, the Slant community recommends Dropbox for most people. In the question“What is the best cross-platform note-taking app?” Dropbox is ranked 38th while Google Drive is ranked 39th. The most important reason people chose Dropbox is:
You can use Dropbox via website, by installing a desktop client that creates a folder that you simply drag and drop files into, or with their mobile app. Everything synchronizes across all devices used and cloud storage. And Dropbox offers easy methods of sharing whatever is within it.
Specs
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Pros
Pro Easy to use
You can use Dropbox via website, by installing a desktop client that creates a folder that you simply drag and drop files into, or with their mobile app. Everything synchronizes across all devices used and cloud storage. And Dropbox offers easy methods of sharing whatever is within it.
Pro Cross-platform desktop and mobile
Dropbox is available on iOS, Android, BlackBerry, Windows, OS X and Linux. By having a client for so many OS's pretty much anyone is covered no matter what kind of device or OS they are using.
Pro Allows sharing a folder
Using a desktop client: right click on the folder you want to share and select Dropbox > Share This Folder, then enter the e-mail addressees of people you want to share the folder with.
Pro Smart updates to big files
If a small portion of the file is changed it sends/receives only the differences (not the whole file), which is fast and bandwidth-efficient.
Pro Allows sharing a single file via link
Whether using desktop client or web interface, simply right click on the file you want to share and select Dropbox > Share link, then send the link to the people you want to share the file with. The recipient does not require a Dropbox account.
Pro Up to 18GB of free storage space
Dropbox personal accounts start out free, with 2GB of space, but users can get extra space by recommending the site to friends, or taking part in events like "Dropquest", where users can win extra space by solving puzzles.

Pro Linux support
Dropbox offers native Linux support, integrates with Nautilus file manager.
Pro Reliable
Pro Desktop client has no file size limit
As long as you have enough storage available, you can upload files of any size using Dropbox desktop client.
Pro Folders can be downloaded compressed to save bandwidth
To save bandwidth and download speed you can choose to compress a folder into a zip archive for download.
Pro Adjustable bandwidth use
To not slow down the network or save traffic you can limit the upload and download speeds of Dropbox.
Pro Lots of addons and integrations
There are official and third-party Dropbox add-ons that extend the functionality of the service and add ease of use of existing features.
Additionally, Dropbox can be integrated with existing applications to bring its functionality to other apps.
Pro 30-day version control
Dropbox keeps deleted and earlier versions of files for a month.
Pro Instant disaster recovery
Your files always synced online means instant disaster recovery. When your hard drive becomes unbootable, pick up another laptop and just carry on with your life from where you last saved.
Pro Available free storage can be increased with referrals
You get extra free space for you and your friend if they sign up.
Pro Fast sync speed
Pro File sharing & collaborative editing
Google account holders and non-holders can be set to access and/or collaborate on files/folders in real-time. Additionally, you can find files you've shared not only by filename but by person you've shared the files with.
Pro 15GB free
This space is shared across Drive, Gmail & Google Photos.
Pro Built-in office suite
Includes tools for writing, presentations and spreadsheets.
Pro Integrates with other Google services
For example, you can use search to search through both Drive and Gmail.
Pro Extended functionality via apps
Third party Drive applications running in Chrome or Android can add functionality such as image/video editing, project management, flowchart creation, etc.
Pro Mobile integration
You can work from any device, especially mobile.
Pro Save files to drive directly from Gmail
Drive lets you save any file from your email.
Pro Cheap for extra storage
$1.99 per 100GB, for up to 16TB.
Pro Revision control
By clicking Ctrl + Alt + G in Windows or Command + Alt + Shift + G is OS X you can access previous version of the file.
Pro Indexes images
You can search images by object, place, or face when they've been added to your google photos collection. Google Assistant also helps you find screenshots that could be archived, images that aren't in the correct orientation and pictures that would work well as animations or albums.
Cons
Con Too little free space
There is just too little of free space available comparing to the competition.

Con Not secure
They don't apply end-to-end encryption, files are visible to admins, governments, etc..
Con No privacy
Extensive collecting and distribution of user data to commercial third parties.
Con Consumes a lot of CPU resources when syncing many files
Con All-or-nothing (non-selective) upload
Uploading generated contents (cache, compiled code, etc.) is prone to conflicts, wastes bandwidth and free space.
Con Low bandwidth
Con Dropbox keeps deleting features, chasing customers away
For instance, all photo albums got deleted. It used to be very easy to share a couple og photos, now it's PAINFUL and must be done file by file.
Con Nocive development model
Takes a lot of decisions that usually damage community, from deleting features to making impossible to use with other filesystems than ext4 because they decided without a plausible reason (they said it was about xattrs, but all modern linux filesystems supports xattrs, so it's bs.)(they remove this later, but it's too late).
Con Problems when synching between Linux and Windows devices (unconfirmed)
This summer I lost thousands of files due to this problem on older projects which subsequently needed revising and had to be rebuilt as tons of the source was gone.
Con Restricted only to 3 devices for FREE accounts
Recently dropbox decreased the number of linked devices to 3, so you can't have more than 3 linked devices. This is problematic if you use Dropbox to sync between your computers.
Con Can unintentionally delete your files if you reinstall your OS without closing Dropbox
If you reinstall the operation system for your PC and you do not close Dropbox, it will delete all files.
Con No official client for Linux
Google as of yet has a client for Linux, leaving many who use the service forced to use third party apps or the webpage.
Con Data privacy not guaranteed
Data privacy is widely known as one of Google's weaknesses. Data shared through Google is most likely matched up with the user's profile inside other Alphabet inc. subsidiaries, and, due to the business model, used commercially.
Con Terms and Conditions allow Google to own anything on Google Drive
They can create derivative works, they can perform it, they can modify it, and they can publish it at will. There are many other specific rights they take over your product. Read the Terms carefully and compare with ANY others.
Con Very unreliable
Desktop client constantly crashes.
Con No WebDAV, FTP or SFTP
It supports none of these common protocols used for access to network storage, which severely limits OS integration. You are forced to use the browser or a standalone client, which isn't possible on all systems.
Con Low bandwidth
Can't even upload all my files to this
Con Low sync speed
Con No universal Windows app
Con Doesn't integrate well with OS
