I'll tell you which one was my least favorite: the 6-series GC.
I thought it would be a good idea to get one of these for my wife. She hated it. Didn't drive it but a handful of times. Front seats were uncomfortable and too low. Rear seats were useless for car seats and even less comfortable than the front seats. Drove like a boat.
I sometimes forget we ever had it. Hardly took any photos of it either. After a few years, she replaced it with an M2C.
