I'm actually using crosswalk, but I am having a lot of issues with S2 and S3 for sure! My crashes show 0 however, although I know from experience that it has crashed on those devices.
I also had that issue initially, along with a few other brands of devices.
I fixed that by changing the included plugins, remove everything, then only include "Standard Cordova Plugins": Device (must include this else crashes occur on some devices! I use version 0.2.5), Events and Splashscreen.
It works fine on all those devices so far, I had a bunch of beta testers try it with various devices which used to crash with CJS or default XDK settings and they reported it works fine.