Starting at the very top, i'm thinking that off of brand and looks alone a lot of people will decide what they want before even delving into specs, since already a lot of people walk into this segment with a bias towards either brand and other brands competing in the segment. I for one didn't at any point consider anything else, yes the F-Type is nice but the 718 Boxster with the history behind it and Porsche's History can't be beat... in my opinion. Plus the Jag is ugly.