I'd take an Aston Martin over a Ferrari or GTR or pretty much anything else. I don't need anything super fast, and I don't want something super flashy. I'd just keep it classy with an Aston Martin.
The only exception, and if I had an unlimited budget, I'd take a Pagani Huayra. I love the moving control surfaces (or whatever you call them), and the interior is the most awesome, over the top interior I've ever seen.