Is Ripple or Stellar better?

Could you please elaborate on which one is a more favorable choice, Ripple or Stellar? I'm interested in understanding the key differences between the two cryptocurrencies, such as their use cases, scalability, and adoption rates. Could you also compare their technology, including consensus mechanisms and transaction speeds? Finally, could you offer insights into their potential future growth and market positioning? Thank you for your assistance in helping me make an informed decision.