Lamborghini.
Ferrari's, IMO, don't look good. With the exception of a few. Their 1990 F40 model? Horrid.
Plus, their older models, with the exception of their race cars, looked like every other car on the road at that time.
I give Ferrari credit on their design on the 458. That is one good looking car. Even the Enzo and F430 is good looking.
But I just feel that Lamborghini has built more legendary, better looking, and better performing cars. For example..
I side with Lamborghini. But that's just my opinion.