pm-utils: What Sleep Module Is Best: kernel (default), uswsusp, or tuxonice

[Tom Browder]

In man pm-action is some configuration info for /etc/pm/config.d:

       SLEEP_MODULE [=kernel]
           The default suspend backend to use. Valid values are:

           kernel
               The built-in kernel suspend/resume support. Use this if
nothing else is supported on your system. The kernel backend is always
used if
               nothing else is available.

           uswsusp
               If your system has support for the userspace suspend
programs (s2ram/s2disk/s2both), then use this.

           tuxonice
               If your system has support for tuxonice/suspend2, use this.

Has anyone used anything other than the default (kernel)?  Any recommendations?

Thanks,

-Tom