Which webinar provider is best for large events

I want to start a G2 community discussion about which webinar provider is best for large events. Do you have any recent hands-on experience choosing webinar software for a large event, or using these top-rated software systems in G2’s Webinar Software category:

Zoom Events & Webinars: Supports massive virtual gatherings with a capacity of up to 1 million attendees. How do features like screen sharing and breakout rooms work for enterprise-level events with thousands of attendees?

BigMarker: Hosts large-scale webinars with extensive interactive features, with up to 500,000 live attendees. How easy is it to use the automation features like pre-recording sessions and scheduling them to send at specific times?

Webex Events & Webinars: Delivers enterprise-grade virtual events with robust security and scalability. Are features like real-time translation available to all users?

ON24: Drives engagement through AI-powered digital experiences. What audience analytics data does it provide, and how useful did you find it?

Livestorm: Known for reliable browser-based webinars with automation and engagement analytics. How insightful are the provided analytics on attendee behavior?

Let me know if you have any first-hand experience using any of the webinar tools above. Leave me a comment if you have any answers to my questions about the software on my list. Based on your experiences, which webinar provider is best for large events?