I have driven the GTR and own a Huracan. There is no comparison. The Huracan wins on performance just by a little, but destroys the GTR on luxury and beauty inside and out.
If you are looking for just 0-60 times or lap times then I would get a Z06 Stingray, but if you want a stunning car that performs in every situation and is unique enough that it's unlikely to run in to another one on the road then the Huracan is the car to get.