Etihad and that classic British Airways seconded
Since flying with them in the late 70's I've always been partial to Royal Brunei;
Good question Goose, one of mine is the Virgin Flying Lady on Virgin Aircraft.......as theres Not many of them!
I am lucky if I remember to turn the camera on and remove the lens cap!!!!, but I have a go.
BEA's red square livery has my vote, and I think it would look fantastic on the A320 fleet!
I would have to say the Aloha Airlines old 'Funbird' livery. Looked great on their 732s.
Sorry, here's the link:
V Australia and Canadian Airlines (pre Air Canada takeover)
Of course the last generation BA livery is my favourite. However, there is another airline livery that I love. I don't know why no one chose these two...
Air Baltic is my fav. and check out the image below and there is lots of info about airlines, history of flights etc. in this link Airlines Info and go through World famous Airlines category. Hope this info will be useful and now check out Air Baltic Image
Lots of good (& some not so good) schemes already posted, but none can come anywhere close to Frontier's brilliant wildlife tail schemes