I think it comes down to what you want the car for - both the intended use and how you want it to make you feel.
I'm lucky that my commute isn't by car, so every mile in my Lotus is for pleasure. I'm not overly bothered (but know others are) about the differences in purchase price, VED rate, emissions, mpg, service costs between the V6 and i4. I've driven the V6 IPS and other DCT cars and they're fun in their own way. But I prefer a manual for my fun cars, it's part of the experience of driving them. So too is the noise. I can't remember the last time I had the radio on in the Evora - I've usually got the windows open listening to the exhaust.
If your Emira is going to be a daily driver or track car then your needs will be different. Same if you have budget or running cost concerns.
Buy the one that will make you yearn to get out and drive it.