Having driven several different japanese and european models, these are my observations:
japanese cars are more comfortable at slow speeds (city driving)... easier to drive, and the suspension smoothens out the road, giving it a plush feeling.
european cars are not very comfortable to drive a slow speeds. however, once i am on the highway, it feels supremely safer... it feels planted to the road more, like it was built for high speeds (which it is)/
Current: 2005 BMW X3 2.5i / 2010 Acura MDX Tech
Previous: 2008 BMW E92 328i MT Sport / 2007 VW Passat 2.0T / 2004 Honda CR-V / 1996 Audi A4 2.8