both are good.you can not say that girls are better or boys are better.both is better in singing.girl's voice is far different from boys.it is natural. so your question is not good.
[quote=Ankur0464]It may be any one, though both have different voice, but they both have their respective qualities also.
A women can do in her own field and same for men. So its not wise to compare their voice or singing . Yeah