Who Are Your Favorite Fictional Characters (tv, movies, literature etc.)?

[Aegon]

Felix and Cosima from Orphan Black (Cosima is like my spirit animal)
Tyrion and Petyr Baelish from 'Thrones
Snape (books and films)
Storm from The X-Men

This is probably the most random ensemble of people I've ever thought up in my head, but those are some faves.

I assume you mean Tyrion and Littlefinger from the show since you said 'Thrones? 

Book Tyrion is very different. He's much darker and crueler than his fairly vanilla TV show counterpart. Especially after he's shipped off to Essos. He's still likable because you've experienced so much with him and he is understandably miserable, but he does some fucked up shit. It should also be noted that he murdered Shae out of anger in the book. In the show he only strangles her after she attacks him. That makes a big difference in terms of characterization. 

Book Petyr is pretty much the same, with the exception of the way others perceive him. In the show everybody seems to know he's a scheming weasel, but trust him anyway. Varys sees through him in the show and the two are basically rivals. In the books he is very low-key. Nobody really knows how clever and conniving he is. Varys admitted to having difficulty reading him, and that's Varys' job. The story makes much more sense when you realize how many people underestimated Littlefinger. He never could have done everything he did if people thought of him as they do in the show.