LOL...the FJC is no FJ40, but it's damn capable! Maybe the best description would be the FJC is a road rig that's excellent offroad, and the Rubi is a trail rig that's excellent on-road?
I've seen stock Rubis on Pritchett Canyon, they are very well built.
A stock FJC has also been through Pritchett Canyon...they are also well built

.
The differences have already been detailed very well here

and they might be important depending on what you wanna do with it. For most people and the light offroading they do, daily driving and grocery getting, just buy whatever brand you like or whichever rig you think looks better

. They'll both get the job done

.
-Sean