Breasts are the ultimate weapon. They render many would be attackers completely mesmerized and un able to attack.
But if you really want to beat the cr@p out of somebody, there’s nothing better than a staff in my opinion.
and
what if u want to slice ?
My favorite Kung fu Weapon
The Deer Horn Knives used in Bagua.
WHY? i think that they are nice weapons to work with. I think that if you ever had to use a bladed weapon that these would come in very handy. But realistically Speaking i would prefer a knife and not a small knife. Not an overly huge one either.
My Other choice would be a waxwood staff. practical and very very tough to break.
Yo, TWS
Kwan Dao
Weapon with a lot of history and very cool looking.
Agreed, the Kwan Dao.
Heavier the better, none of that aluminium tube with a wu-shu blade rubbish.
I like it for the elements of the staff, the spear and the sword, and how it tests your strength, balance and thus your stance to the highest level.
Also, spirit. No other weapon lets you channel fearsom spirits. 
Anything you can do with a Kwan dao you can do with a shovel.
I would like to learn the 9 section whip too, but never had the chance.
My favourite right now is the Spear, but I hope to learn the Bench very soon!