Which sword is better 'roman sword or medieval sword?

Medieval sWords were much longer and used for slashing. The Roman infantry sWords were shorter, and although Roman cavalry used a longer sWord, they were still shorter than Medieval sWords. The Roman sWord was intended primarily for stabbing. It may be impossible to say which was better. In Medieval times armies were smaller than in Roman times because no one could afford to maintain the huge standing armies which once made the Roman sWord so effective in battle. I think that each was the right sWord for its time.