This gets asked alot I see. IMHO I think most people are asking so that somebody doesnt say why you get a sports car with a automatic (maybe same people that ask you that don't have the internet either) I think you will be great with either choice, but just not as fun but definitely more practical in traffic
Sooner or later the numbers will come out and I am sure 1 will be better then the other but by not enough for anyone to really really care. It just be bragging rights.