which stroller for overseas trip?

[euno]

so after obsessing over strollers, i finally ordered the red castle whizz and the peg perego pliko lite, both which i really love. we're going on a trip to tokyo/seoul this winter and dd will be 9 months old. what stroller would you recommend we bring? the whizz is a much more comfortable ride than the lite but am wondering if it'll be a hassle to take to the airports and to carry up and down subway stairs (fold is easy but it's on the heavier side). at the same time, the lite would be more convenient to fold and carry around (since it has carrying handles and all) but i'm afraid dd will be uncomfortable sitting in it for nearly 2 weeks straight (the back padding rests against the plastic parts which have a lot of grooves) since we'll be doing tons of walking and i don't think these cities have the best sidewalks.

has anyone done any air travel with either of these strollers and have tips; what did/didn't work? tia