DONE5 is more than twice the price of the option I'm looking at. I've been "invited" to go to London in September for a very interesting oppportunity, but I'll have to spend my own money to do it. I agree with you number_6 that the DONEs are the best for $$/SCs, but sometimes the $$ are short!
It's either BNE-SIN in Y, SIN-HEL in J, or SYD/MEL-LHR in WT+ for the same price. The Atlantic routing was simply another way home, with some nice SCs to earn.
My TA just threw another one at me:
CX AUS-UK A$3,999: AUS-HGK 1 leg in Y, one in J. HGK-UK 1 leg in Y, one leg in J. The killer on this itin is that one of the ultra longhauls (HGK-UK or vv) must be in Y...