Fairly often, usually in a single thread, the off-topic discussion of 'who is the best singer/dancer in HP?' pops up. Here is a thread dedicated to just that!
Obviously, there is some difference between 'best' and 'favourite' but I suppose they kind of tie together. For me;
7. Maachan (I know many dislike her voice but I think she can be quite versatile with it)
8. [bias] Ayapan [/bias]
(But in terms of preference it'd be Duu>Meimi>Sayubee>Ayapan)
Also - I trawled through this sub-forum but in the case that this is already a thread, apologies and please lock