Upper Class 744 vs 346

I cannot belive it, but after years of Upper Class travel I have only just recently travelled on the Boeing 747-400. I liked it (LHR-EWR 50% empty) but what I am asking is:

are the suites (I was front row down stairs in 6k) longer than those on the Airbus 340-600?

I am convinced they are - I went to HKG last week and it felt a lot shorter - was this because I was in row 4 where the aircraft begins to tapper?

[honey lamb]

You might like to have a look at this recent thread where this topic was discussed