Blair Wind
The Iron Avenger
Hmmm interesting. I was reading up on them on Wiki, and found that in the Comics, Mikey actually won a tournament that made him the greatest fighter in the (galaxy?).
As the Turtles personalities have been already discussed, let me talk about the weapons. In national geographic's fight science, they discussed the weapons based on three different criteria:
Range
Control
Striking ability
Bo Staff:
While the Bo staff topped the charts (of the weapons being discussed in THIS fight) with range and control it lacked in striking ability slightly. However, its speed was incredible (since one side of the bo leads to the other) and is MY personal favorite
Sai
While the Sai's were not talked about I can estimate that control would be great, and striking force would be meduim range (sticking things can be deadly, but in pure force it lacks compared to the others). Range would suck. But the tactical advantage the three prongs provide could turn the tide in any battle
Nunchucks
Fastest of the bunch here, its range was minimal, its control lacking (since when using it there is always a split second where you do not control it). Its striking ability was not that great, but the speed made up for it. Using it as a grabbing tool could be useful as well.
Katana:
According to them, it was the greatest of the weapons. It had the best mix of everything, in range, control, and striking force (providing both sticking ability to go through the body and a full body slash).
I would personally use a Bo Staff but that is just preference, and all weapons can be effective it just depends on the skill level.
That all being said, I think that Leo would win. While ralph can take more of a beating, and Mikey has more potential, and Don could possibly outsmart him, in battle Leo is better skilled so does not need to take as much of a beating like Ralph, REALIZED his potential unlike Mike, and is TACTICALLY smarter than Don. With all this said Leo wins