I'm not sufficiently familiar with both models to talk about merits either.
I think you probably haven't had many replies because few people will know both models well enough.
My limited experiences have shown me that vocal is in the mid-band, so if you're after good vocal performance I'd go for the speaker which promises the most in this range. They both appear to be 3 ways, so take a look at the drive unit/implementation in the mids is my advice.
Cheers