Ruby Walsh feels the 7lb allowance Annie Power has against her male counterparts will make her very hard to beat - whether she runs over two miles or three.

The decision over whether the unbeaten mare tackles stablemate Hurricane Fly in the Champion Hurdle or steps up to three miles for the World Hurdle in March is unlikely to be made until much nearer the time, but that is of little concern to Walsh.

Willie Mullins' stable jockey believes the way Annie Power has twice brushed aside Zarkandar this season bodes well for the future.

"I honestly don't know what race would be best for her," Walsh told Racing UK.

"She travelled really well (at Cheltenham) and jumped nicely apart from the last, which she got under, but I was impressed with the way she gathered herself up after it and got going again very quickly.

"Zarkandar is a good yardstick, he's been second to Annie Power twice this year and second to The New One and last year he beat Rock On Ruby and Grandouet in the International.

"Annie Power has beaten him comfortably twice but the one advantage she's always going to have is the 7lb allowance and it is going to take a good gelding to give her 7lb and a beating be it two miles or three miles.

"Willie won't have the discussion about her race at the Festival for another six, seven or eight weeks. She'll have another run before then and will maybe answer a few more questions then.

"Her training wouldn't change if she was going to run over two miles or three."