Overall the audio on Blu-ray is reviewed consistently higher than HD DVD.
HDD
257HD/270BD, HTS
231HD/239BD, HTF
98HD/97BD, UD
150HD/133BD, Talk
288HD/298BD
09.28.07
Code:
[B]HD DVD PQ SQ TOTAL [/B] [B]Blu-ray PQ SQ TOTAL [/B]
HighDef 3.89 3.62 3.75 HighDef 3.97 3.83 3.90
HTSpot 3.94 3.86 3.90 HTSpot 4.07 4.27 4.17
DVDTalk 3.64 3.49 3.56 DVDTalk 3.67 3.72 3.70
HTForum 3.90 3.68 3.79 HTForum 4.28 4.07 4.18
UpDisc 3.98 3.80 3.89 UpDisc 4.03 4.12 4.07
[B]Totals 3.84 3.67 3.76 [/B] [B]Totals 3.94 3.96 3.95 [/B]
That's around 1,000 Blu-ray reviews and 1,000 HD DVD reviews compared.
Blu-ray has over three times as many releases with lossless audio tracks and perhaps that could have something to do with it.