I used Bests for my first year because I'd had the BV8 with them for about twenty years. But Gott & Wynne were significantly cheaper on a like for like policy, so that's where I've been since......

In fact I've just shopped around on MrsW's Polo and saved £100 by going with LV (Liverpool Victoria) - who are endorsed by the CSMA (Civil Service Motoring Association).
Since their website is so user friendly, I'll be looking at the house insurance at renewal very soon.