Apparently according to these boards and others, the aft cabins are the ones to go for. By aft I mean those one right at the back of the ship facing the wake.
I cant talk from experience but after reading lots of differents threads on this particular subject you will see that most people will only sail if they have an aft.
I have one booked for next June on LOS med 14 nights deck 7 and am really quite excited about it. Apart from the spectacular view the balconies are larger than the side ones.
The only downside (apparently) is the long walk to the elevators which are located mid ship and I guess this could be a problem for us girls who wear high heels. Guess I shall just have to walk barefoot on those "special nights".