The broadsword is not too heavy, but it does require some additional strength in you sword hand and arm. But the extra effort you put into your training will pay off because flashy broadsword forms usually do well in competition. The straight sword is considered more fluid and elegant than the broadsword. In ancient times it was used by government officials and royalty, so it was a higher-class weapon. These days, women and girls often perform straight sword routines, but it is not a woman's weapon.
Many men use it, too.
Because the straight sword is double-edged, you have to be aware that both edges are potentially sharp. In forms, most of the motions are for cutting and thrusting. The spear is similar to the staff except that one end has a sharp tip. Therefore, spear forms contain more thrusting motions than staff forms. The spear is one of the more difficult weapons to learn.