I always prefer A or K. On long haul flights, B suites are just too close to the door and Im a light sleeper and often times I get woken up if there's people walking the asile.

As for which side to sit in, looking at recent arrivals during that time, the winds have been favoring 34L/R. Example: https://flightaware.com/live/flight/QTR740 Sitting on the right side would give you a better view.

f.