I would say that as far as the upper range of their voices are concerned, that MC and Lynn are the closest to Meav. Meav does have the highest range. alex is close to Lynn and MC but not quite. They are all good at vocal purity but i would Meav is just a shade purer.
You are Purely right Meaviac
That's what I admire about Both Alex & Meav, whether range High, Middle, or Low their emotion's are represented beautifully.
Well, that is extremely different to know, because we can't know for sure what their ranges are. There ranges are at least as wide as we know them, they can't be more limited. However, we don't know if they use their full ranges or not, so some might sing way higher (or lower) than we could know, because they just don't do it.
I know that many have been surprised by Alex's performance takes after she left Celtic Woman.
Alex is a marvelous Alto, but having only her be in Alto range contrast to Orla which is her gift, the specialty
of Alex as what can be a Signifying Celtic Woman is not much shown as Susan was able to prove.+
This is why if Alex was accepted to cover over Carlin singing Nella Fantasia, I am sure everyone would
be amazed, not Chloe amazed but similar with different Beautifying Voice.
I sense it be even more astonishing to hear than we know of Carlin, who is still excellent in her own version way!=