Ripple is a scam dog, Its just a centrlaized excel spreadsheet. Ripple is not a real crypto currency!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
This decision of making a choice in between any of the crypto coins greatly depends on you and that you need to make the right choice after having enough of the knowledge about the things. In my opinion, it is better for you to go with investing of the money into ETH as ETH is the second most popular coin after bitcoin and that it has a better chance of making you earn more money.
A trader should trade ethereum and he also needs to hold some ethereum like an investment. Because it's amazing and holding it provides nice return to you if the market is positive.