Vectra VXR v Insignia VXR

Right mateyflaps. I have been the very happy owner of a Vectra VXR for the past couple of years. I've put around 20K miles on it and it's always pumped my nads so to speak but I have a hankering for the Insignia VXR. I would appreciate your comments of both cars from those who have changed recently and those who have changed a while ago to get a cross section of opinion. I'm not looking for one is c**p and one is ace but a rounded and honest opinion of the good and bad points of both models. Are you glad you changed or would you go back to the Vectra?
Thanks for your time.
Milleboy