Great whites are just like running backs or a slow AF freight train, tigers are twitchy like that meth head at the petrol station, bull sharks are actually bullies, makos are a bullet train with teeth and something to prove, hammerheads are just plain graceful.
Coolest shark is definitely a hammerhead, I'll vote for the Great HH.
[edit 2nd coolest sharks are Nurse Sharks because you can wade / sit in the water and they come up like dogs.