Hello,
I changed from a +8 to a DB7 Volante, not the Vantage mind you. I changed back to a +8 this year because although the Aston was most enjoyable, it wasn't quite what I wanted. I got the DB7 so that my wife, who suffers from MS could get in more easily.
When she found out that was the only reason I changed she said "You WILL get another Mog". Who was I to argue?
As has been said, try them all, the car will find you.