For the most part, I venture out solo. If needed, I can conjure a couple of Dremora Lords or Wrathmen. But for the most part, I like to go alone.

Usually solo.

My playstyle doesn't really offer itself to the longevity of a Follower's lifespan, and that's just for my 2H "Tank" style characters.

Most of my characters are Assassins, and Followers usually muck up the whole Stealth aspect that I try so very hard to keep pristine.

Follower, primarily to carry more stuff.

Depends on my characters.

On my Nord Dragonborn I like to adventure both solo both with a companion (from the Companions) which im Harbinger.

On my Khajiit Assasin I like to travel with my other Khajiit brother Kharjo.

Do dogs count? Whenever I find a stray dog I can't resist bringing it along with me until it dies in battle.

There just something about them that is really awesome. They just beg to come along. It probably reminds me too much of Dogmeat from FO3; always have the little mutt with me.

And their AIs are much better than human; no matter how far you went away, and you might seem to lose them but they always pop up behind you sitting patiently.