Both ripple and ethereum are one of the hottest project on the crypto market. Ethereum have already proved it self in the market being the industry leader, almost 90% of the ICOs uses the ethereum blockchain. While ripple is very controversial cryptocurrency some shill ripple as biggest competitors of the no1 position and some decentralised enthusiastic peoples says it's not true cryptocurrency it's centralised because company holds more than 60% of the XRP coin. There is so many confusion about ripple as ripple provides 3 types of services Xcurrent, Xrapid & Xvia out of which only Xrapid uses XRP token as fuel for platform. Ripple claims to have 100+ clients as shown on their websites but we can not say how many of them uses Xrapid protocol. But recently there were few exchange announce using Xrapid protocol so the chances are higher that XRP price can boom in 2019 again like Jan 2018. For more stable investment if I need to choose one than will choose ethereum over ripple because ripple is quite confusing.