The five best steel swords for both display and functional use are the katana, valued for its curved blade and cutting power, and the longsword, praised for balance and versatility. The Viking sword offers a bold, historic look with solid combat design, while the gladius provides compact strength rooted in Roman tradition. The rapier features a slender blade ideal for precision and elegance. Each combines aesthetic appeal with reliable steel craftsmanship, making them ideal for collectors and practical use alike.