Based on your current available options, I'd also go with ChatGPT. I would flag that if your company hasn't specified yet, to double-check with your security team if it's permissible to upload/integrate customer information (e.g. Gong calls, Salesforce contact record data) into these tools. At my current company, we are allowed to input customer information into Gemini, but are prohibited from putting customer information into ChatGPT.