Yesterday my companion showed me something I was not aware of, she used the Staff of Dread Zombies to raise a goat to fight with her. After I stopped laughing at the mighty goat I began to think. Mostly because I only used and perked Dremora Lords and Atronachs, I never considered the following.

Do raised undead all have the same HP, stats and attack? Is a raised goat just as powerful as a raised human? (Undead bunny of doom?)

Will a frost spider retain its spit attack? A bear its charge attack? I assume specials are lost.

Will a raised mage cast spells and a raised knight retain his armor stats?

Raise Frostbite Spiders and win the game at lower levels.

It's so [censored] empowering.

And yes to your last 2 questions.

what? I really hope this bunnie isnt related to the bunnie in monty python. If it is, well even dwemer tech dosn't stand a chance

Ok that sounds like fun and potentially overpowered. Too bad Dead Thrall is humanoid only.

You can't raise slaughter fish for some reason.

Mud crabs are formidable zombies.

I am not certain, but I think creatures are raised with a % of their original HPs. The perk to add 100 is helpful.

I watched 8 falmer servants kill my dremora lord. He was on a killing spree!
He killed 5 and then he got beat down by an iron mace.

I think if you raise things, they retain their powers.

Raising a zombie mage is my personal favorite.

I just recently discovered that non-humanoids can be raised when Eola reanimated a chaurus (and yes, it kept its spit attack).

My favorite is when I raise conjurors and then they summon atronarchs.