OS X Native full on IDE I'm wondering if there is a good full on IDE for Mac. I know of and have tried Sublime, BBEdit, Coda, Espresso, Netbeans, Eclipse, Aptana, PHPStorm, WebStorm, Textmate and probably other that I don't remember. 

What I mean by full on (which I believe excludes Sublime, BBEdit, Coda, Espresso and Textmate) is something like PHPStorm/NetBeans/Eclipse with a full feature set, intelligent code completion, code linking, etc. 

I really like PHPStorm but it doesn't feel like a native OS X app and is really sluggish.

If anyone knows of IDE that I haven't mentioned above, would be much appreciated.
AFAIK Xcode can support web languages with some plugins, but all the informations I have are pretty old. http://web.archive.org/web/20110811093439/http://developer.apple.com/internet/scripting/phpappledevtools.html

And there are some projects to support autocomplete for PHP that I never really tried.
https://github.com/tonyjohnston/PHP-Xcode-Autocomplete

I'm very happy about PHPStorm, btw and I don't feel the need for a native IDE after moving to it from Eclipse/Aptana.