Dono,
I'm going to go last juror to first
Luke - Cat. Luke played a subtle, but aggressive and intelligent game. He stayed in the shadows early on, and struck as we got further in, winning challenges and forming close bonds with just about everyone, which made him a huge threat
Demi - Dog. Demi played a fiercely loyal game, being kind to everyone, and sticking close to everyone who had stuck close to her. When she got backed into a corner, however, Demi was always willing to strike.
Brady - Snake. PLEASE don't take that in a bad way. Brady always knew how to get past an obstacle. He was cunning, and able to manipulate people into keeping him, and is an extremely intelligent and respectable player.
Dono - Human (Humans are animals too). Dono is one of the best players I've ever had the privilege of playing with. He managed to come out of Thailand with a reputation as a huge physical, social, and strategic threat, and still managed to stay on top for most of the game.
Josh - Elephant. Josh was a fairly passive player for the majority of the season, but whenever he feels threatened, he becomes a deadly player.
Leo - Gorilla. Leo was a very good player, who seemed peaceful, making good connections with many people, but had a lot of hidden strength. He was a very good social and physical player, who managed to win an immunity in a cast full of physical powerhouses and keep himself in good standing with everyone until Phil's fake idol stunt.
Dan - Monkey. The main reason I have for this is that Dan was constantly swinging back and forth between the two alliances.
Robby - Tiger. Robby was such an extremely obvious social and strategic threat that he went way sooner than he probably deserved to.
Sagar - I didn't really see enough of Sagar's game to give him an accurate description, so I'm not even going to try for fear of being completely wrong in my evaluation.