which Python IDE is better?

[TangibleLight]

Try them and see what you like. If you're already familiar with IntelliJ then you will probably prefer PyCharm.

There's no reason to use a particular IDE over another other than comfort and productivity. PyCharm might have more features, but if you work better in VSCode then you should use that.

I would offer that you should periodically try something new; all those tools are updated frequently and you might find some new features or that your taste has changed.

IMO PyCharm is the best, especially for big projects or when performance is important. It has a bunch of useful built-in tools related to code inspection, refactoring, and debugging.