What is better to buy, XRP or XLM?

Could you please clarify for me the differences between XRP and XLM? Which one offers more potential for growth in the cryptocurrency market? Do they have any distinct features that make them stand out? Is there a particular scenario where one might be a better choice than the other? Given my investment goals and risk tolerance, which one do you recommend I purchase? Could you also explain the factors I should consider when making this decision? Thank you for your assistance in helping me understand this better.