I may be biased because I am a long time SolidWorks user but I am now learning to use Rhino because I am going to be teaching it come September to university students.
I can honestly say that I see absolutely no point in learning Rhino whatsoever. The notion that it is easier or faster than SolidWorks is entirely false in my experience thus far. With a good SolidWorks teacher you will pick it up as fast as Rhino and it is infinitely easier to model to scale and account for manufacturing, etc, etc.