Originally Posted by G-CIVC

Long haul
SFO 870/879 - combination of pax profile (200 AVMLs etc) + 77G + day flight + bad outport hotel
LAX 898/897 - day flight
LHR 239 - day flight, pax drink too much, 77G
YVR 855/856 - hated if 4 day, also because 35G + day flight
CDG - hated because bad hotel / 35G
MAN - hated because 35G and 4 day
MAD/BCN - lowest allowance (200 EUR) if 4-day, in addition 77G + always full load + pax profile
TLV - 4-day + pax profile (KSML) + 35G
Almost all Australia flights - 3 day patterns, no crew rest on 33K, pax drink too much

Short/medium haul
PEK/PVG - self explanatory (delays + too many DMs)
SIN - self explanatory (too many DMs / long hours turnaround = no allowance)
NRT 520/521, CTS 580/581, DPS 785/784 - longest same day turns, but many times done by crew that join the high hours scheme who are okay with that so its actually fine normally
Ex-Japan - pax shop too much, Hong Kongers complain too much
HKG-TPE-ICN/FUK/KIX/NRT/NGO flights - not enough time to finish service, long hours and low allowance, too many pax (773Z 33P etc)
MNL/CEB/CGK - many 'ma fan' IDs

Of course, you can't really see how they 'hate' them when they're on their job, because they have professionalism unlike their American peers.