I haven't used many lounges across the network, but I couldn't agree more. The staff at the SIN lounge are absolutely fantastic, always going out of their way to do the little extra and making sure everyone is comfortable and well taken care of. Big props to them.
DXB is difficult because of the size of the operation, so there's no personal touch. The lounge staff in CDG are also most accommodating, and I found the staff in KUL to be very helpful as well.