Simple question! I'll go first.
Favorite: Saltwater crocodile:
They're massive, stealthy, beautiful, they have the biggest bite force of any animal alive today
Their bite force even comes close to that of a t-rex.
They are truely amazing creatures.
Least favorite: Any spider.
I absolutely loathe spiders, can't stand them. Though the webs they weave are amazing i just hate spiders so much.
Just the way they move is so unnatural to me and they have so many eyes, they look so messed up, Yuck!