My favorite, as far as "which one do I get and use the most?" Has to be the Savior's Hide. Why? Looks great on my female PC's. Really no other reason. Stats are not even that great.

http://fc06.deviantart.net/fs70/f/2013/049/9/c/malene_s_choice_by_burhenn63-d5vdb3z.jpg

Black Star, Sanguine Rose, Namira's Ring (For low level Character's its like +10 levels of health/stamina)

I want to say black star...But I've never really used it.

I remember using Wabbajack the most in order to "level up" my follower(s)

I'll pick the Wabbajack.

I tend to not go for the artifacts that much anymore, but spell breaker is fantastic.

Ever since I acquired Spellbreaker Sir, I won't be parted from it.

Aesthetically striking and mightily effective....

That sounded like one of those Charles Atlas body building machine adverts from the back of one of those old Uncanny Tales comics didn't it Sir?

Spellbreaker, Azura's Star, Oghma Infinium.

I like Volendrung. Wabbajack is fun too

Certainly not the best in usefulness, but it sure is the best looking in my opinion. http://cloud-3.steampowered.com/ugc/468667379592143477/42DC35BD2C57C2FA2517312DC445A7CC816B0E84/

That's a badass looking orc. What armor is that?

Thanks, he's a blast to play. That's hothtrooper44's http://www.nexusmods.com/skyrim/mods/13366/?.

That makes sense. I would include that armor and also Dawnbreaker. Also, from Nocturnal, I use the snot out of The Skeleton Key for the time that I have it.

Even though I almost always get Azura's Star, I seem to rarely use it. I usually have enough Soul Gems that it rarely gets filled. I also never turn it black

Mehrune's Razor always intrigues me, but I just can not bring myself to use it.

Really depends on who I am playing. If I'm going two handed it's Volendrung. If one handed it's Mace of Molag Bal. If I'm fighting sword and board Spellbreaker, especially if I'm hunting for dragons. If I use enchanting Azura's Star is high up there too. If I'm an assassin Mehrune's Razor is the stuff. Etc.

Design wise I kinda like Dawnbreaker without it's light on, thought that's not available in the game.

I don't know about best Artifact...probably Azura's Star or Skeleton Key.

My favorite, though, would have to be Ebony Blade. That thing is amazing.

Being able to swing as fast as a one-handed sword and replenish health without needing to recharge is over the top, plus it looks badass.

Second favorite would have to be Sanguine Rose, as it is so helpful at any level.

My favorite and most used is Azura's star, either version.

I like Azura's Star and the Ebony Mail. I also remember using Wabajack in Oblivion especially against willow wisps.