The first time I played oblivion I used blades and so I carried a unenchanted longsword and an enchanted dagger (or three). This way I could kill lesser foes without wasting soulgems/gold.

Now I am using blunt weapons. I am thinking I will need the spell bound war axe which might come from a mod. So thats my plan. But my question is whether there are any other strategies. Axes weigh a lot.

If you are using the bound axe, you can damage it, repair it, drop it, wait for the timer to run out, and voila, a zero-weight daedric war axe. I like swinging the big warhammers around, but the axes were meh for me.

A Fortify Strength should be helpful. It improves the Damage rating of your weapon as well as being an influence on fatigue although I not sure if the fortified part is included in fatigue. You might want to experiment. I have a character that retired from active adventuring who does experiments like this for me at the Arcane University.

A Fortify Fatigue enchantment will help you swing your weapon without getting 'falling-down-tired'.

The Bound War Axe spell isn't from a mod; it's part of vanilla O. And, yes, all blunts are heavier and slower than daggers. Just make a spectral (fire/frost/shock damage plus 1 sec soul trap) blunt and get Azura's star. If you're killing too many humanoids in a row summon a skeleton and kill it until you're recharged. You can hotkey the AS and just recharge after every kill. Takes no more time than repairing. You only need carry one weapon this way. It's less effective against totally resistant creatures like a flame atronach than a shock weapon would be but it does more raw damage than a weapon with a single enchantment on it.

Mara