When comparing PuTTY vs WinSSHTerm, the Slant community recommends PuTTY for most people. In the question“What are the best terminal emulators for Windows?” PuTTY is ranked 6th while WinSSHTerm is ranked 14th.
Ranked in these QuestionsQuestion Ranking
Pro De facto standard client for SSH, Telnet and Rlogin
Pro Source code available
Full source available. Compile and modify it yourself.
WinSSHTerm is free for anyone to use.
Pro Highly portable
The user can run WinSSHTerm from a USB drive on different computers.
Pro Supports file transfer
The user can start a WinSCP session inside WinSSHTerm, without the need to duplicate the session in WinSCP.
Pro Ready for production use
There are no annoying bugs in WinSSHTerm. Navigation tools and keyboard shortcuts are a great time saver, especially if you have to manage multiple connections.
Pro Keyboard shortcuts
Keyboard shortcuts are especially valuable for professionals.
Pro Supports X Server
There is easy, automatic integration with X Server and starts/stops can take place with the launch/exit of WinSSHTerm.
Con Tedious logging/tracing
Its tedious to set up logging and tracing (e.g. for serial connections).
Con Lacks features
It is JUST an SSH client. There are many other options with built in X-servers, Multitabbing etc.
Con Can not save passwords
Anyway, you can use "PuTTYgen" to generate a key pair, then use "Pageant" to do a password-less SSH remote login.
Con No global settings
If you want to change a setting for all your connections, you'd have to do it individually.
Con No login scripting
Con Not a true terminal emulator
It's a PuTTY interface and it's mostly used to access remote machines through ssh, so it may not be very suitable for working on a local machine.