Hi
prash,
I have done the CDG-SIN (Actually DUB-CDG-SIN) in AF Y and was happy enough with it.
We were on a 777W and can feel a bit cramped as AF uses 3-4-3 configuration, but we sat in the first row of the 2-4-2 section at the very back (by choice) and I had no complains what-so-ever. The IFE is fine but as both our flights were night flights I didn't use the IFE at all (seldom do anyway). I have always found AF flight crew to be top notch no matter what section your in ^
Haven't flown KLM long-haul since being on one of their horrible old 747's to SFO 10 years ago so wouldn’t know... DOn't know if they (i.e. KLM) use these on AMS-SIN though...
Anyway, just like DUB flights, all UK flights also go though 2E and it's a breeze in my opinion to transfer. Much better than at LHR IMHO, BUT there is nothing much to do in the transit hall of 2E unless you have cash burning a hole in your pocket. You'll see what I mean when you get there. Overall I prefere CDG over AMS anyway, but that's a personal preference. Loads of other people here will tell you differently