When trying to choose which of these libraries to use for some projects I made a quick list of the pros and cons of each and thought it might be useful to others when they are doing the same.
So without further delay, here is my list for Knockout so far:
And for jsViews:
No matter which of these you choose to use, they both have the MVVM pattern covered if used properly. At present it seems to be a choice based on personal preference. I welcome any comments or suggestions for additions to my lists.