I play on expert because I found the default a bit easy. I had to change this in the .ini file because a bug in the game would not let me change it. It would set it once then I couldn't move it again.

Adept. It feels like the way the game was meant to be played.

I chose novice. Lol.

Expert from day one. I want a challenge and I want to work for it!

Master

Been having fun on Expert

Master difficulty only. Every other difficulty is too easy.

Masters cause I want the ultimate experience even if I die alot.

I play middle of the road adept.

I don't really min / max, so it seems like the perfect difficulty for my character types.
Not too hard, not too easy.

I suppose once my skills start to top out I'll have to kick it up a notch. For
the time being, though, adept seems the way it should be.

Adept
It seems pretty easy, except for Dragon Priests.
I might turn it up to Expert.......eh, maybe not.

I go between Apprentice and Novice (when the boss fight is too much).

Master. I just like to see if I can do it. I beat S.T.A.L.K.E.R on Master, so I figured maybe I could on Skyrim.

Master. Sometimes drop down to expert... the enemies are crazy random. Sometimes I can take on two bandits at the same time, and then a single bandit with a one handed sword can four shot me, through my block and 350+ armor rating.

It's a bit frustrating at times, because even with 200 stamina, two power attacks and a shield bash and my bar is completely empty. Meanwhile, enemies have unlimited stamina, and can power attack faster than my normal swings.

I always start on easy/novice. I hate hard games.

I stuck with Adept on my first character just to get a feel for the game. Once I got familiar with the perks and how I think I was going to be playing, my new character plays on Expert almost always and never lower. Adept is just too easy for the most part, but Master is brutally hard when you've got several adept mages at once, or when you try to go toe-to-toe with a bear, troll or the later dragons. I'll bump it up to Master on rare occasions when I want to level certain skills quicker.

expert, but might turn it up to master once i get a few more lvl's and perks

Novice I played on Master until I found a dragon priest... never going back.