For me,the S197 COYOTE will always be the KING of the Mustangs !
On down the road, the 14 Mustang will be the one to have being the last of that style. IMHO it is the last of the classic Mustang "lookers". This is why I bought the 14. I had originally planned to get a 15, but I just could not warm up to the styling. Although I traded my 2012 for the 14, I still believe that the best styled Mustangs ever were the 2011-2012.
I've spoken with many dealers in waiting for the "right" 14 to show up. They said that the feedback they've received was that folks either love or hate the 15's....nothing in between. The "haters" are gobbling up the 14's and I'm totally happy to be in that particular crowd.
BTW if my 2012 had been a GT, I would NOT have traded.