I think Ethereum is more reliable. Because the Ripple release unlimited. Price drives Ripple is constantly falling.
I also think Ethereum is more reliable than any alternative coins exist. It is the most popular one and valuable one compared to others. And I think it has a good future.
I think I go to ethereum because this coin are still going to survive even their price are going down. Not like ripple that when it was fall down their value they cannot increase it again.