I think that she could beat the Avatar and pretty much anybody.
Beating the Avatar
She COULD beat him, even without any form of blood bending. Technically she could freeze a charcter into a block of ice, and have the character's body shatter completely, in effect killing that person. Katara does THAT and there is no more Avatar.
However, Katara is too soft in regards to her friends to do such a thing, so she would not even bother.
That and Nickelodeon would not approve of children seeing people's bodies shattering into ice crystals.
As much as I love Katara she would loose agains THE AVATAR......Ang in The Avatar state is so powerful that he can bend all elements at once....I doubt that Katara can handle Earth,Fire,Air and Water coming at her all at once...She's powerful b t not that powerful....
" @Slight: Yeah but in one episode she blood bended a fire nation general in broad daylight "No...no. she didn't...it was still dark...what she did was scare him sh!tless...And that was in daytime...she did bloodbend a Admiral, but that was on Wailtail Island, in the night time
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