First class - Still waiting to find out
Business class - Cathay Pacific
Premium economy - QANTAS
Economy - Singapore (the A380 upstairs cabin if it still exists)
I'm pretty much with you.
Just my 2 cents worth :
Whilst not having a tremendous amount of experience travelling with a huge variety of airlines on Long- haul ( I've Mostly travelled QF/BA/EK in my lifetime of long-haul flying) I can only go by solid feedback from friends, family and those in the know, such as reading reviews written up here on AFF or decent travel review publications.
Despite being a self proclaimed Qantas Fan Boy, What I will say is that, the one and only time I travelled on SQ in 2011( MAN > MUC > SIN> BNE) I travelled as a lowly red VS frequent flyer ( I don't have a VA FF account yet .... But that's another story ) .
Reflecting back at the experience on SQ now, I felt I was given the same level of service onboard those flights as what I now experience as a QF WP ( which is always "over and beyond" by the way) .
Maybe I was lucky on those flights with great crew, but I firmly believe that SQ were simply outstanding in Y especially considering I had entry level status with a partner airline.
The SQ soft product was legendary and its no wonder why I know of plenty of airline passengers in the UK for example, who are prepared to pay up to £100 more ( in excess of $200 AUD) to fly on SQ Y to Australia than other carriers.
( The Hard Product in Y, for most of the large flag carriers, I feel doesn't differ too much)
Next year I will get to travel for the first time on three new carriers which I have never traveled on before , which I'm greatly looking forward to :
- AY ( only in Y but on their new A350)
- CX (In their legendary J product, long-haul )
- AA ( domestic F..... I have set the bar low on that one
)
Hopefully I will be a bit more rounded with my opinions of the various airlines by then.