If travelling alone I would suggest a mid cabin seat. That way you get an aisle and your seat mate also gets an aisle (provided you like an aisle seat).
Nobody to climb over you if you want to get some shut eye. I think my preferred seat would be 4G (IIRC there was no row 3) on their A330-300. So 4 is actually 3. Far enough away from the front row (babies, people going to forward toilet, crew working etc) and far enough away from the rear 2 toilets. I found it to have less foot traffic movements but gave me choice of going front or rear for toilets and I could see what was happening re food service i.e had time to wake and prep for service or do a quick toilet run before service.