Does that include Josh Groban? I really like his version.
Yep. His version is choppy, and he breathes in illogical places. "It is the night," (breath), "of our dear Savior's birth," and "Oh night," (breath), "divine" are just 2 examples. More than that, he sings everything at the same level of intensity...or lack thereof.
Even Nat King Cole butchers this song, and I LOVE his voice. Pop, country, jazz, etc. singers have no idea how to handle the music.
Pavarotti's version(s) are quite musical, but its hard to get past the horrendous English. Even when he sang it in the original French, he made sounds that are unnatural to the language.
One of the best versions I've heard is by Plácido Domingo. He's good in both English, and the original French.
[youtube=425,350]
[/youtube]