Sydney to Singapore in Qantas economy: is the Boeing 747 or Airbus A330 better?

Which aircraft offers more comfortable seating in Economy, particularly for the overnight SIN-SYD flight? Does anyone know which version of the B747 QF uses on this route?

My preference is the B747 as it's more likely to have Skybed Mk II flatbeds than the A330. Check seatguru.com for best seat recommendations.

the OP specifically mentions the 'Y' ECOMONYcabin...skybeds in ANY version are not relevent to the question

As mentioned I will be flying in Economy, not Business.

Oops! My apologies, for my misunderstanding. I'm afraid I can't help on this one. I'm sure you'll get good advise from others on this forum. Safe travels :-)

Thanks AWA2602.

Purely just from a seat-layout standpoint, I'd pick the A330s 2-4-2 versus the 747s 3-4-3 in Y. But then again there are plenty more factors to consider.

The 747 is definetly the better way to go.

I recently came back from Singapore on an A330 and it was the most uncomfortable flight i have ever had. This was due to the IFE box taking up almost half of the foot space available under the seat in front.

Avoid 24K unless you want DVT !

such an irresponsible and ignorant comment to make..the 'old type' AVOD boxes wont cause DVT..DVT can occur in FIRST CLASS...OR ANYWHERE..EVEN IN YOUR HOME..IF YOU STAY IN BED OR LAYING ON YOUR COUCH WITHOUT MOVING YOUR LEGS/FEET.. DVT can occur over time due to pre existing conditions/lifestyle..do some foot/leg exersices...

forgot to mention..those 'DVT' boxes are on 6 x 747 aircraft as well...

I did not say that the IFE box causes DVT.

The issue is that the foot / leg space is so restricted with these boxes that it is difficult to find a comfortable seating position. It also makes it virtually impossible to do the anti-DVT excercises unless you want to play footsies with the person next to you.

Get up, go to the toilet, go heckle the crew. MOVE.

my mistake...so if you 'want' DVT choose 24k!!! ... or any other seat on the a330 or some 747s that have those 'boxes'.....YOU are the one that linked the 'boxes' with DVT...NOT ME!! i was just responding to your 'linking'...it can be very irrisponsible/danderous to link 2 things together if you dont have facts to prove ....BTW..it has NEVER been PROVED... im willing to bet you only know about DVT because youve seen it as part of an airlines' spiel on making your flight more comfortable..which the airlines where forced to include to appease the public when someone accussed an airline of 'giving them DVT'...DVT THEN BECAME THE BUZZWORD!!  

Dude...

Undertheradar, it has never been my intention to make lite of DVT. 

I do have some  experience with DVT. Last year I had a very close friend devlop a clot in her leg following a very cramped Virgin International flight from London to Sydney. I saw her the day after she arrived home and she was complaining of a sore calf. I advised to go to the doctor immediatly, which she did. It was found that she had a 15cm clot in her calf. She is a very fit lady that excercises everyday, her doctor believes that the cause was most likly the lack of excercise / movement during the flight. She was very lucky to get this diagnosed before she started excercising again as this could have had fatal consequeces.

The DVT comment was a thowaway line , lets leave it at that.