According to the latest report published by Strategy Analytics, Apple is moving ahead of competitors Dropbox, Google and Amazon in the battle for cloud storage supremacy.

Over a quarter (27%) of Americans polled said they had used iCloud, compared with 17% for Dropbox, with Amazon Cloud Drive (15%) and Google Drive (10%) trailing behind.

Interestingly, over half of respondents (55%) had never used a cloud storage service, but 33% had first used one within the past week.

The report noted the key battleground in the cloud storage wars was music, with nine in 10 users storing music, although movie content has the potential to become a huge player in the space.

“The growth of video streaming and the desire to access content via a growing range of devices will see services such as the Hollywood-backed digital movie initiative Ultraviolet – currently used by 4% of Americans – increase market share,” noted Strategy Analytics’ Ed Barton in a prepared statement.

“The cloud’s role in the race to win over consumers’ digital media libraries has evolved from a value added services for digital content purposes to a feature-rich and, increasingly, device agnostic digital locker for music and movies,” he added.

Towards the end of last year, there were interesting developments in this field. Back in December Dropbox bought personal music streaming service Audiogalaxy, pushing itself further towards a cloud music service.

The other intriguing takeaway from the research illustrated how far away the rest of the players were for cloud storage. The aforementioned Ultraviolet was the next most popular service, followed by offerings from Samsung (3%), OnLive (3%), LG and Galkai (both 2%).

There certainly seems to be a gap between the big players and the also-rans. But who do you see winning the cloud storage wars?