CSR or OBC?
I will tell you which version I like better for each character...
Valjean: TIE! Colm Wilkinson and Gary Morris sound almost the same in their interpretations. Colm Wilkinson is better, but I can't say I like one more than the other because their interpretations are almost identical except for the different accents (Colm= heavy Irish accent, Gary= country accent).
Javert: Complete Symphonic! Terrance Mann is good, but he's not nearly as good as Philip Quast.
Fantine: Broadway! I think that Debbie Byrne has too much vibratto, but I know it's hard to control vibratto if that's the natural way your voice resounds. For instance, I don't cause my voice to vibratto- it just does, and there's nothing wrong with it. (And I'm not talking about WOBBLING, which is a totally different matter.) In some parts, Debbie Byrne doesn't put much emotion into the part. Randy Graff, on the other hand, puts a lot of emotion into her singing.
Little Cosette: Complete Symphonic. She's just so cute! I like her accent. But the one on Broadway is equally good.
Thenardier: CSR! I love Barry James's sinister interpretation, although I love it on Broadway when he says "Keeper of the ZOOO!"
Madame Thenardier: Broadway! I have seen Jennifer Butt on the tour and I love her interpretation above all others. I can't stand Gay Soper's interpretation.
Enjolras: TIE! Warlow has a better voice, but I can't say that his interpretation is better than Maguires. They are both very strong, and I may even prefer Maguire.
Marius: Complete Symphonic! Michael Ball is very good.
Cosette: Oh, God, Broadway! Judy Kuhn has a deeper voice than Tracy Shayne.
Grantaire: Broadway! Anthony Crivello (I think that's his name) has a wonderful voice, and the grating voice in "Red and Black" turns me off on the CSR, even though he makes up for it later in "Drink with me."
Eponine: CSR! I actually think Kaho puts a wide range of emotions in her portrayal- from playful to hurt to desperate to joyful at being in the arms of Marius as she is dying. She has a heavy accent which annoys many people, but it doesn't bother me. Frances Ruffelle is good, but better on London.
Really it's a personal decision- I would get both if you have the funds!
"I have a fever, and the only prescription is more cowbell!"