Another benefit of using an Eclipse IDE is the wide array of plugins for other languages. I have a Perl plugin and SQL plugin. I like being able to use the same IDE when I do need to switch languages, which is so far what has put me off trying Pycharm or Wing.
I'm running PyCharm (3.1 pro) and I currently have plugins for .sh, .pl, .md, and more. Some plugins require download (iirc, I had to go through a wizard to get the plugin for markdown)
It's low risk trying PyCharm. The community edition is fairly full-featured, and is free.
I have used Python under IntelliJ IDEA and find it unbearably slow. I am not sure if Pycharm would be faster than IntelliJ IDEA.
Spyder2 is great, except that I have had it crash several times. The deal-breaker has been debugging support. When I hit "step into function" on the current line, it runs out of the current function. And there is no call-stack.
PTVS (Windows-only) seems to be fast enough. In some cases though I see exceptions showing up in the console window that are not reflected in the IDE, leading to confusion. Hope they fix this.
