I recommend to go to a medieval fair, there you can touch and handle melee weapons freely to get an idea how they feel. I remember that I once handled a parade sword which had a very thick and ornate blade, my arms were hurting immediately. Then the guy handed me his own short sword which was used in the fighting demonstrations and it was literally like picking up a can of beans: much lighter weight than expected and I couldn't feel at all the "length" of the blade when I swung it around - it was perfectly balanced in the hand.