One of the most common use cases for public IaaS cloud computing is storage and that’s for good reason: Instead of buying hardware and managing it, users upload data to the cloud and pay for how much they put there.

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It sounds simple. But in reality, the world of cloud storage has many facets to consider. Each of the three major public IaaS cloud vendors — Amazon Web Services, Microsoft Azure and Google Cloud Platform — have a variety of storage options and in some cases complicated schemes for how much it costs.

According to Brian Adler, director of enterprise architecture at cloud management provider RightScale, who recently ran a webinar comparing cloud storage options, there is no one vendor that is clearly better than the others. “Is anyone in the lead? It really depends on what you’re using (the cloud) for,” he says. Each provider has their own strengths and weaknesses depending on the specific use case, he says. Below are three of the most common cloud storage use cases and how the vendors stack up.

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