In the long term, real world use cases and network effects will be the most important thing. There are so many cryptocurrencies today that are only used for trading.

But if you actually look at the list, BTC and ETH, the top 2 coins, have tons of real world use, which is why they are valued so highly. Ethereum was built from the ground up to have real world applications, which is why, inspite of being a relatively new coin, it has rocketed to the top of the list. In that sense, I think Steem is in a good position, because it also has a real world application.