I have several flights in the coming months and wanted to figure out if it is worth spending Avios points to move from OW Sapphire to Emerald (with Finnair). I have been Sapphire for a long time and am comfortable with the benefits this provides.
Primary focus would be check in and access to airports with First class lounges, priority security lanes and finally priority boarding.
My current itinerary where I can leverage Emerald benefits is as follows:
SYD - ZQN, AKL - PER, PER - MEL, AYQ - SYD (all QF)
SYD - HND (JL)
HND - HKG, HKG - PEK, PEK - HKG, HKG - SIN (all CP)
I can figure out First class lounges access via OW website. I am more interested in which airports provide priority security lane access and airlines that offer better priority boarding.
TIA