The bound swords are part of an aesthetic choice. I like them better because they remind me more of the Garo Master's weapons, as well as being weightless and appearing out of nowhere. If you prefer something that can potentially be more powerful, Ebony or even Daedric swords are an options.
edit: The nice thing about them, is if you don't use them, you can drop Conjuration and put more perks in Enchanting, Destruciton or Smithing.
The bound swords are part of an aesthetic choice. I like them better because they remind me more of the Garo Master's weapons, as well as being weightless and appearing out of nowhere. If you prefer something that can potentially be more powerful, Ebony or even Daedric swords are an options.
edit: The nice thing about them, is if you don't use them, you can drop Conjuration and put more perks in Enchanting, Destruciton or Smithing.