When comparing SecureCRT vs OpenSSH, the Slant community recommends OpenSSH for most people. In the question“What are the best SSH clients for Linux?” OpenSSH is ranked 1st while SecureCRT is ranked 4th.
Ranked in these QuestionsQuestion Ranking
Pro Puts emphasis on security
SecureCRT has strong data encryption and secure authentication through the support of password and public keys.
Pro Scriptable via Python API
Has a Python API to control most aspects of the terminal and sessions. Scripts can be bound to buttons, menu items, and keyboard shortcuts.
Pro One of the most trustworthy development teams on the web
Pro The reference
If you find samples or tutorials about SSH, they almost always refer to OpenSSH.
Pro Standard implementation that documentation for all other tools assumes you have installed already
A lot of other tools (e.g. git) are based on this for file transfer.
Con Not free
Paid product. Some nice additional Cygwin type features and server version are integrated, but for most users the feature set probably does add enough value for a paid only client.
Con Command line tool
It can be difficult to use from a command line interface.