Tom Paris would take down the Maquis Mauler. Combat has a lot do do with range. Chakotay would have to get closer to Paris to landa strong Strike while Tom could land one from a greater distance. All the boxing training in the world can't save if you if your opponent lands a successful first strike and uses it to create a strong second third and fourth strike.
Besides range I could see Paris etting out of more tough spots than Chakotay. He struck me as a single minding striker, meaning that if the strategy fails, it is very difficult and sometimes impossible to change tactics.
Besides range I could see Paris etting out of more tough spots than Chakotay. He struck me as a single minding striker, meaning that if the strategy fails, it is very difficult and sometimes impossible to change tactics.