daniellam,

Unless you deem the train ride to AMS from FRA is much of a hassle, I would highly recommend you take 744 betsy seats over Airbus 340. I much much prefer the very front A zone section for their first class as the cabin exudes the sense of a private and secluded feeling. The gallery is placed way behind the first class cabin separated by the hallway and a noise-reducing curtain!

While Airbus betsy seats are just as comfortable and spaciously laid out, the only thing that separates the first class cabin and the business class cabin behind is a curtain and I found the traffic by FAs back and forth between the first class and the business class to be very frequent and disturbing indeed. Also as there are only two rows in the first class, the front row is right behind the kitchen gallery and the noise coming from the gallery could be pretty loud. ( I mean they do scramble the fresh eggs for breakfast as you might know..)

All in all, there is just absolutely no comparison IMHO.