Lossless Audio: Which takes the cake ?

[Sir Terrence]

If it is all in the mix, and each codec is bit for bit to the master, then whether it is in Dts MA lossless or Dolby TrueHD should matter all that much should it?

Both of these codecs(at least these days) are audio carriers that should not alter the way the audio mix sounds. If you are finding differences amoung the lossless audio codecs, then there is something the matter with the way your equipment is handling the data within the audio chain, or it is a remix. If the encoder/decoders of both codecs are working correctly, or do not have some strange offset values(like dialog norm defaulting to on) there should be no difference between the lossless codecs, its just becomes a matter of efficiency, and nothing else.

Personally, I prefer PCM because of its simplicity. No lossless compression, which means no decompression. No complex mathmatical computation algorythms, just a straight shot from the master to the disc.