Vauxhall, imaginative?!
I'm sorry, but all the brands you mention create some seriously dull looking cars for the vast majority of their range. All Fords essentially look like scaled versions of each other, Nissan create the most boring mainstream cars on the planet next to Toyota, Honda's range sends me to sleep, and even the regular Jags are hardly exciting to look at.
I'm not saying that a 320D or an A4 2.0TDi are interesting, but it's not like the Mondeo, Insignia, XE, Micra or Civic Tourer are setting the world on fire.
Think Audi are dull? Haven you not seen the latest TT interior? That's stunning, and very creative with the LCD dash and controls on the air vents. They lead the way in interior design right now. However, I agree that BMW have slipped up a lot lately as their core range is bland, as are the M cars to look out inside and out. Nissan is a deathly dull brand, by and large. The GT-R may be quick, but it's definitely not a looker.