There are so many possibilities of who gets the throne, but who's army stands with more bodies after the battle. Jon being the most honorable and everyone else cut throat as can be. You know Dragon Queen will not bend the knee to his right to the throne over her. I would assume it comes down to a dragon riding battle between the two.
And that Iron Islands guy. you gotta love hating him. Reminds me of Asher from Spartacus.
The little north girl is going to be the one that gets the throne!
My buddy said he heard a rumor that Tywin hates Tyrion not because he's a dwarf and killed his woman during birth, but because she was actually raped by Targaryen and he is product. So it's possible he has some claim to the throne.