Zeus is a programmer's TextEditor designed for Windows developers.

http://www.zeusedit.com/

Some of Zeus's features:

* Configurable syntax highlighting
* Unlimited undo/redo
* Project and workspace management
* Class browser
* Code folding
* Auto complete
* Seamless FTP editing
* Integrated VersionControl includes support for CVS
* Built-in macro scripting supports LuaLanguage, PythonLanguage and JavaScript
* MDI - MultipleDocumentInterface
* Spell checking
* Powerful search and replace with support for RegularExpression''''''s

A free shareware version is available.

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What are some of its strengths and weaknesses vs, say, CodeWright, UltraEdit, Emacs, and Vim?

Here is how I would compare Zeus to these editors:

* CodeWright: Very similar in terms of feature set, configurability and target audience. 
* TextPad as UltraEdit:	Not as good a general purpose text editor as these two. Being highly configurable, this does mean Zeus can be a little difficult to use.
* EmacsEditor: Does not try to emulate Emacs, but Zeus does provide an Emacs keyboard mapping.
* Vim: How can anything compare to Vim :)

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''Is there a way to hide all the lines that start with more than a specified number of tabs?'' 

Yes and no. Zeus does have the ability to select and hide lines of code into a fold point.

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CategorySoftwareTool, CategoryTextEditor