I don't go by pokedex entries either. It's probably strong but... look at it. It barely has arms, no pecs a visible ribcage and thighs the size of a baby. I am also a boss at sword fighting so this would be over quick, in my favour.
Now if I were to fight a Machoke this might end a bit differently.
If we're using weapons against an unarmed pokemon, then yeah we are.
Well actually, Machop is armed. In fact, Machop has 2 arms. And since that's all he needs, I'd say a weapon might be necessary for us tool-using humans. You know, since that's like half the reason that we're top of the food chain, and our *cough* amazing physical prowess is not exactly the other half.
And another thing, would you really want to give a Machop a weapon to make it fair? Talk about brutalizing something. I don't think a Machop with a weapon would think twice about brutalizing anyone if they pissed it off.