My Experience with using 2 different cloud providers

(Google drive & Dropbox)

The storage space:

Both Dropbox and Google Drive offer free storage space Google Drive comes as standard, with 15GB of free space, which is far more than Dropbox initial free storage offering of just 2GB.

Supported platforms and devices:

Google Drive:

Google Drive has supported both Windows and Macintosh systems and the most famous smartphone systems such as IOS and ANDROID, but it does not support Linux systems and some non-famous smartphone systems.

Dropbox:

Dropbox supports Windows, Macintosh, IOS, ANDROID, Blackberry, and Linux systems and is the only one that supports Blackberry and Linux.

For me, the better one is google drive because I care about the storage space more than anything else.