FWIW I had a similar dilemma(?) recently, I was looking to sell the Fiesta ST (Great car) for something a little less practical and quicker... my list
A45 AMG (Yellow night edition thing)
All very capable cars and the interiors are incredible, the Audi interior on the newer models is great - the merc similar really... however and its a big one, for me they were just too soft, they dont really offer any driver involvement - the TTRS I had waited to drive for over a year and was dead excited, sounds/looks great but its a let down from a driver perspective (for me anyway), massively fast but feels over servo'd and 'safe'... probably supposed to, i knew I would get bored.
So I changed the options up and looked at the new cayman GTS (previously owned GT4 and a GTS) and a 370z (given Nissan want to give me 5k off one)
Porsche was a great car but not (imo) worth the 40k more than the Z they wanted.
Tbh I think most people would be happy with any of them, all cracking cars but it does fall down to personal taste good luck