For the majority of workloads, AWS, Azure, and GCP can all technically do the job — compute, storage, databases, networking are table stakes everywhere. The real decision usually comes down to factors outside a feature comparison spreadsheet.
Where each one genuinely differentiates
AWS has the largest service catalog and the largest talent pool — more engineers have AWS experience than any competitor, which matters for hiring. It's the safest "default" choice when there's no other strong pull toward a specific provider, precisely because it's the hardest to be wrong about.
Azure has the deepest integration with Microsoft's enterprise ecosystem — Active Directory, Microsoft 365, .NET tooling. For an organization already running on Microsoft infrastructure, Azure's identity and access management integrates with what IT already manages, which is a real, practical advantage, not just brand loyalty.
GCP leads in data analytics and machine learning tooling (BigQuery in particular is genuinely best-in-class for large-scale analytics) and has a reputation for the cleanest Kubernetes experience, unsurprising given Google originated Kubernetes. Teams with data-heavy or ML-heavy workloads often find GCP's tooling fits with less friction.
Factors that should actually drive the decision
Existing team expertise. Migrating a team fluent in AWS to Azure for a marginal feature advantage costs more in ramp-up time and mistakes than it's likely to save. Unless there's a strong specific reason, defaulting to what your team already knows well is usually correct.
What your organization already runs. An enterprise already deep in Microsoft's ecosystem gets real, compounding value from Azure's integration. A startup with no prior cloud footprint has no such pull and should decide on other factors.
Specific service needs. If your product is fundamentally a data analytics platform, GCP's BigQuery is worth seriously evaluating on its own merits. If you need a specific managed service that only exists well-developed on one provider, that can outweigh general-purpose comparisons entirely.
Pricing — but modeled against your actual usage pattern, not list prices. All three have complex, workload-dependent pricing, and "which is cheapest" depends entirely on your specific mix of compute, storage, egress, and managed services. A generic "cloud X is cheaper" claim rarely holds up against your actual bill.
The multi-cloud question
Running workloads across multiple clouds simultaneously sounds appealing for avoiding vendor lock-in, but it multiplies operational complexity — different IAM models, different networking primitives, different monitoring tooling, all needing separate expertise. For most teams below a certain scale, the operational cost of genuine multi-cloud outweighs the lock-in risk it's meant to avoid. A more common, more practical middle ground: pick one primary cloud, but avoid deeply coupling your architecture to provider-specific services where a portable alternative (e.g., Terraform, Kubernetes, Postgres instead of a fully proprietary managed database) exists at similar cost — that keeps a future migration possible without paying the ongoing tax of running multi-cloud from day one.
The practical bottom line
Unless something specific pulls you toward Azure (Microsoft ecosystem) or GCP (data/ML workloads, Kubernetes-native architecture), AWS remains the reasonable default — not because it's objectively best on every axis, but because its size means fewer surprises, more available expertise to hire for, and the deepest ecosystem of third-party tooling built to integrate with it.
