Mostly auto.
Manual only if I'm in the mood for some RPM (the auto shifts too early).
Intention was to use manual when driving twisties and mountain passes (fast) - but I admit I prefer the PDK in auto when doing this. I can keep my hands on the wheel firmly and and can concentrate fully on the corners without getting distracted by the shifts.
It is only occasionaly that I override using the paddles (while still staying in auto) - and that's normally just a downshift because I can see something coming up that the PDK can't know. I never use the PDK lever - only the paddles.
The only issue I have with PDK in auto is that I have to be careful coming out of corners accelerating too hard while going uphill (as you do on mountain passes) - the PDK tends to like to downshift unexpectedly when I'm pulling 0.8 or more lateral G which causes the back to step out worringly sometimes (always saved thanks to PSM). Note that this happens only on the uphills.

When I feel like rowing a gear lever, I hop into my Miata.

Rainier

 

Mostly Auto for me, too. I throw in a downshift from the steering wheel every now and then, the throttle blip is intoxicating, but I am still in the break-in period for 1800 more miles. After that, Sport and Sport Plus with manual much more often.

 

Great question!
1. I shift in manual probably 80% of the time.
2. Ya know, I'm about 50% between lever and buttons.

 

Sport mode prob 98% of the time.

Manual mode 5%.

I tend to downshift myself mainly.

 

Almost 100% on auto except for one time when I'm playing with the paddle trying to reach 270kmh on along stretch of road.