My son has the Jaguar XE R Sport and as much as I love my IS300h F Sport the Jag's interior blows it away in terms of design, and in my opinion, quality in most areas, especially the sat nav which makes the Lexus offering look and act ancient.
Lexus would trump the Jag in terms of reliability, exclusivity and customer service but I don't think that would be enough to sway me from opting for the upcoming Jaguar F Pace rather than making my next car the NX.