I chose Ethereum over Bitcoin. Bitcoin has made multiple runs already and may be do for a few more in the future but here is 4 reasons I beleive Ethereum upside far exceeds Bitcoin.

1. Ethereum transaction speed are faster and cheaper
2. Ethereum has better technology and is scalable
3. You need Ethereum to purchase most new altcoins.
4. Compared to Bitcoin price, Ethereum price ceiling is much higher for better return on investment than Bitcoin.