1. Qantas - soft in places as noted and also "flat" contrast - wise as noted.
2. Cathay - soft as noted.
3. Easyjet - good.
4. Continental - soft a bit, especially on tail.
- again as noted, looks unreal, sharpening and saturation.
6. ANA - No chance. Dull and soft.
Seems to me like you have great "subjects" - i.e. heavies, but the light wasn't great. that makes it harder to get good photos, and there is some post-processing overcompensation. The Easyjet is a perfect example - god light and a good shot.
I agree about size - unless you have an awesome close-up that is tack-sharp and you want folks to count rivets, go with 1024 wide.
Improvise, adapt, overcome.