Ethereum is powering a huge volume of transactions lately. In fact, more crypto dough is being pumped through Ethereum than Bitcoin and all other altcoins combined.
Check out this visual from BitInfoCharts, showing the last 24 hours of transactions on the blockchain:
There are plenty of coins with fast transaction times and inexpensive fees, but at the moment ether is clearly the number one choice to move money through exchanges and peer-to-peer.