Which is better Polygon or Ethereum?

Excuse me, could you please elaborate on the comparison between Polygon and Ethereum? I'm quite interested in understanding the nuances between the two platforms. From what I've heard, Polygon seems to offer scalability solutions to Ethereum's congestion issues, but I'm not entirely sure about the specifics. Could you possibly explain the advantages and disadvantages of each, perhaps highlighting their performance, cost-effectiveness, and use cases? I'm keen to know which one might be a better fit for my crypto investments and development needs. Thank you in advance for your insights!