When comparing Cortana vs Take Command, the Slant community recommends Take Command for most people. In the question“What are the best power user tools for Windows?” Take Command is ranked 52nd while Cortana is ranked 74th. The most important reason people chose Take Command is:
Regular expression pattern enabled tools for text filtering, searching, substitution, and conversion.
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Pros
Pro Can recognize music
You can ask Cortana what music is playing and she will attempt to identify it.
Pro Will let you know when artists you're interested in play in your area
Cortana monitors your Bing search history, social network actions, music played, etc to find out what are your favorite artists and will let you know if they plan to play in your area.
Pro Text processing tools
Regular expression pattern enabled tools for text filtering, searching, substitution, and conversion.
Pro Powerfull scripting language
Powerfull scripting language with a lot of commands and predefined variables.
Pro File compression tools
File compression tools, e.g. bz2, gz, tar, 7zip and zip.
Pro FTP Command Line Client
Command line driven FTP client.
Pro Batch Debugger
It has a GUI Debugger for Batch files as well the own scripting language (BTM).
Cons
Con Functionality is limited on non-Windows devices
While Cortana is available on Android and iOS, certain features on those operating systems are either limited or non-existant. For example, there's no hands-free voice activation on iOS, and on Android it's only available on the homescreen and nowhere else, etc.