It depends what your playing style is and you do have to give up another sword (red eagle something i forget what) to get red eagles bane but traditionally chillrend is better because it does more damage.
p.s chillrend doesn't level up with you once you get it so it is better to wait until level 36ish until you get it
hope this helps!
Console command, or even better yet, Pick up the sword and drop it in the Jarls quarters.
Chillrend is one. You can enchant any sword with a frost damage effect.
Random Items, Daedric artifacts, Daedric sword with full blacksmith+ armor with blacksmith on it, then enchanted with armor with + enchanting
No, it can be executed with a blocking weapon too, such as a two-handed sword.
you have to go in to her resting place and kill the man who is destroying it. for doing it you get the sword the dawnbreaker
A Dwarven Sword of Devouring. It absorbs health, so I'd presume that it would be the "Absorb Health" enchantment. To get it, just find a sword with it on, and then disenchant it and apply it as you see fit.
phantom sword
No
Longsword.
Armadyle God Sword
Wood sword
Skyward Sword.