Teams is great because it works well with Microsoft. Webex feels old and outdated compared to newer tools like Slack. It's like it's stuck in the past and doesn't have much of a future. Teams is robust and rock solid because of Microsoft. It's extremely well integrated with everything, and you feel secure using it.
Webex's user interface is not up to par, and it lacks the modern features you find in tools like Slack. While they may add a few functions here and there, Webex doesn't seem to have much of a future compared to Teams or other more advanced tools.
If I were to rank them, Webex would be at the bottom. I'm not impressed with Google Meet either. Then it's Zoom, followed by Huddle and Teams. Teams is at the top because it's robust and integrates well with many things. Huddle is catching up fast and is close behind Teams, in my opinion.
I rate the overall product a six out of ten.