Features of a good Web Dev IDE

Supported Features.txt

IDE Roundup
    Dreamweaver (http://www.adobe.com/in/products/dreamweaver.html)
    Netbeans (http://netbeans.org/)
    Notepad++ (not an IDE, simple Editor w/ Powerful features w/ Plugins)

Emmet for HTML/CSS
    Supported by Dreamweaver, Netbeans & Notepad++
    WARNING: Dreamweaver & Netbeans needs keyboard shortcuts configured to work efficiently
    
SASS w/ SCSS to css conversion on save
    Use Scout (http://mhs.github.io/scout-app/)
    
Live View
    Supported by Dreamweaver, Netbeans & Notepad++
    WARNING: Notepad++ supports using Preview Plugin
    WARNING: Dreamweaver doesn't reload live preview on save for JS (use F5 to refresh)
    Use LiveReload (http://livereload.com/) using browser addons or extensions in FF, Chrome, Safari & Opera OR using embedded code in HTML files
    
Code Completion
    Supported by Netbeans & Notepad++ (full support for built-in codes)
    WARNING: Partial support for user defined codes in all IDEs
    WARNING: Dreamweaver doesn't support user defined code completion (not Code Hinting)

Syntax & Matching Brackets highlighting
    Supported by Dreamweaver, Netbeans & Notepad++
    WARNING: Dreamweaver CC breaks syntax hightlighting for one JS line when '/' symbol used (represents divion sign)
    
Spell Check in comments
    Supported by Netbeans & Notepad++
    
Code Hinting (both userdefined & built-in codes)
    Supported by Dreamweaver, Netbeans & Notepad++
    WARNING: Partial for user defined codes in Netbeans
    WARNING: No support in Notepad++ for user defined codes
    
Documentation support & hinting
    WARNING: Unsupported by all IDEs
    
Task list support (@TODO or @Fix)
    WARNING: Unsupported by all IDEs
    
Support for prototype oriented JS hinting
    Supported by Dreamweaver (maximum support but not full support)
    WARNING: Unsupported by Netbeans & Notepad++
    
Validation of HTML, CSS, JS using JSLint & JSmin
    HTML & CSS validation supported in Dreamweaver
    HTML validation supported in Netbeans
    HTML, CSS & JS validation supported in Notepad++ using plugins (HTML Tidy, JSMin, JSLint)
    
Auto Source Formatting on save
    Supported by Netbeans, Dreamweaver & Notepad++
    WARNING: Dreaweaver & Notepad++ source format works manually

Auto Indentation
    Supported by Dreamweaver, Netbeans & Notepad++
    
VCS support (Git w/ gitflow, Mercurial, SVN)
    Supported by Dreamweaver, Netbeans & Notepad++
    WARNING: Netbeans supports Git w/o gitflow
    WARNING: Dreamweaver only supports SVN
    Git w/o gitflow support for Notepad++ added using Plugins
    
Advanced Color Generator & Previewer on a template page
    Supported by Notepad++ using Plugins

WebDev IDE Features.txt

A good Web Development IDE must have the following features

Emmet for HTML/CSS
SASS w/ SCSS to css conversion on save
Live View -- refresh live view on CSS/JS file changes (either on save or realtime change detection)
Code Completion -- both from local codes & built-in codes
Syntax & Matching Brackets highlighting
Spell Check in comments
Code Hinting
Documentation support & hinting (both generate from source & show in hintings)
Task list support (@TODO or @Fix)
Support for prototype oriented JS hinting
Validation of HTML, CSS, JS using JSLint & JSmin
Auto Source Formatting on save
Auto Indentation
VCS support (Git w/ gitflow, Mercurial, SVN)
Advanced Color Generator & Previewer on a template page


// Feel free to add more...