In my opinion, Amazon EC2 is a strong example of IaaS because it gives users full control over virtual machines, including the operating system, storage, networking, and application configurations, while Amazon Web Services handles the underlying physical infrastructure, making it highly flexible and scalable for a wide range of workloads. This level of control allows organizations to run custom applications, manage security settings, and scale resources on demand, which is the core idea behind IaaS. Compared to other cloud models, EC2 sits at the lowest abstraction level, meaning it requires more management effort but offers maximum flexibility, whereas PaaS simplifies deployment by managing the platform and runtime, and SaaS provides ready-to-use applications with minimal control. Overall, EC2 stands out as a classic IaaS example because it strikes a balance between control and scalability, making it ideal for teams that need customizable infrastructure while still benefiting from cloud convenience.