In a small bowl, combine the warm water, sugar, and yeast. Let it sit for about 5 minutes until it becomes frothy. In a large mixing bowl, combine 2 1/2 cups of flour and salt. Make a well in the center and pour in the yeast mixture and olive oil.
Mix until a dough forms, then knead on a floured surface for about 5-7 minutes, or until the dough is smooth and elastic. Add more flour if needed.
Place the dough in a greased bowl, cover it with a damp cloth, and let it rise in a warm place for about 1 hour or until it doubles in size.
Preheat your oven to 475°F (245°C). If you have a pizza stone, place it in the oven to heat. Once the dough has risen, punch it down and roll it out on a floured surface to your desired thickness.
Spread the tomato sauce evenly over the pizza dough, leaving a small border around the edges. Sprinkle the mozzarella, fontina, Gorgonzola, and Parmesan cheeses over the sauce.
If using a pizza stone, carefully transfer the parchment paper with the pizza onto the preheated stone. Bake for 12-15 minutes or until the crust is golden and the cheese is bubbly and lightly browned.
Remove the pizza from the oven and let it cool for a few minutes. Garnish with fresh basil leaves if desired. Slice and serve!