If Faith had magical powers or a troll hummer then Faith would totally beat Glory!

Buffy needed the help of others to finally defeat Glory. Faith would be the same - unless she came across Ben and knew that killing Ben would also kill Glory - she'd be more willing to fight that way.

I don't think Faith could kill Glory by herself. But if Faith, Buffy Willow and Spike fought together, then they could totally destroy Glory!

^Kind of the same logic as me, but I took the poll as being a fight without any others helping.