What is the difference between AVAX and Ethereum?

Could you please elaborate on the fundamental differences between AVAX and Ethereum? I'm particularly interested in understanding their respective technological architectures, the types of applications they support, as well as any notable differences in terms of scalability, security, and their overall ecosystems. How do these distinctions impact their respective use cases and the overall cryptocurrency landscape? I'm also curious about the potential growth prospects for each platform and how investors might evaluate them differently.