What are some alternatives?
When comparing Ethereum and Bitcoin, you can also consider the following products
Litecoin - Litecoin is a peer-to-peer Internet currency that enables instant payments to anyone in the world.
Monero - Monero is a secure, private, untraceable currency. It is open-source and freely available to all.
Ripple - Ripple connects banks, payment providers, digital asset exchanges and corporates via RippleNet to provide one frictionless experience to send money globally
Ethereum Syllabus - A complete Ethereum learning track, packed with resources
DASH - DASH is a secure, blockchain-based global financial network which offers private transactions.
Hyperledger - Hyperledger is a multi-project open source collaborative effort hosted by The Linux Foundation, created to advance cross-industry blockchain technologies.