TES: Oblivion The Top 10 best weapons

Here you have the 10 best weapons from the original game and the two expansions K.o.t.N and S.I. If you have any question feel free to ask.
Weapons locations listed:
10. Whitsplinter: Anvil (Quest: The Siren's deception)
9. Thornblade: Cheydinhal (Quest: The Wayward Knight; must be completed without casualties)
8. Ebony blade: Daedric goddess Mephala
7. Volendrung: Daedric god Malacath
6. Umbra: Vindasel (Daedric quest for Clavicus Vile)
5. Sword of the Crusader: Knights of the nine DLC
4. Chillrend: Chorrol [tavern] (Quest: The Killing Field)
3. Dawnfang: (Shivering Isles main questline)
2. Goldbrand: Daedric god Boethia
1. Shadowrend: (Shivering Isles main questline "Symbols of Office"). You must kill your shadow while he has the blade drawn, he has to drop it, which he doesn't if he is killed using magic.