Percherons are the best breed.
They are amazing smart, loyal once you earn their respect, absolutely gorgeous, smooth gaits, full of personality and have a saucy side as well.
They are inquisitive and if they trust you, there's not much they won't do when you ask them. They are NOT gentle giants though. I hate the term. My fave saying is gentle giants are made not born and it's true. Mine is 18 hands and 2100 lbs. And he's very respectful of me even though he could literally do whatever he wanted, if he wanted too!