I will not stick to dropbox just because of some general and broad legal mumbo-jumbo. The truth is, both services are identical in terms of their intention to hosting your files. However, I cancelled my account today with dropbox for three reasons:

1) 5gb over 3gb I had at dropbox 2) Integration with gmail - you have to admit, this is awesome 3) Integration with google docs. I don't use excel or word anymore. I use google spreadsheets and docs. Now that ALL my stuff is in google drive, I no longer have to separate office-styled documents from pictures, videos and other files. All of them in one place is just amazing.

There's no doubt dropbox was innovative, but since I'm every day on google/gmail/docs - there's no reason for me to use/login to another service.