Should I buy Polkadot or Chainlink?

I'm torn between investing in Polkadot and Chainlink. Both projects seem to have a lot of potential and are making waves in the crypto space. Polkadot promises cross-chain interoperability and scalability, while Chainlink appears to be leading the way in secure, decentralized oracle services. Could you help me understand which one might be a better choice for my portfolio? I'm considering factors like team, technology, market adoption, and long-term growth potential. Which one do you think has a stronger future, and why?