I used to love one h bookings, but now I struggle to keep them entertained, talk, be nice, do something all the time. I really don't feel like talking to clients most of the time and act interested, so 30 min bookings are now my favourites. Pure sex, not much chit chat and playing "girlfriend by hour". So much easier, and better economically for me.
Still, 80% of my bookings are one hours.