Which platform is better suited for your needs: ChatGPT or Gemini by Google?

Depends on your needs Gemini - writing ChatGPT - everything else

Gemini

ChatGPT. Because of familiarity and ease of use

I haven't worked with Gemini but love ChatGPT. It significantly eased my work:)

ChatGPT, but I haven't tried Gemini simply because ChatGPT works well enough for me.