Preheat a deep fryer with oil to 350° and preheat the oven to 180°. Cover two large rimmed baking sheets with clean paper bags for draining.
In a large bowl, whisk the buttermilk with the hot sauce. Put the flour and the cornmeal in two separate large bowls for dredging. Season each with salt and pepper.
Fry the french fries and sweet potato fries. French fries will take 7 to 10 minutes, and sweet potato fries will take 5 to 6 minutes. Drain and transfer the fries to the prepared baking sheets. Place in the oven to keep warm. Fry the onion rings until golden and crispy, about 5 minutes. Transfer them to the oven with the fries.
Dip the catfish in the buttermilk mixture, letting any excess drip back into the bowl. Then dredge in the cornmeal, shaking off any excess. Fry the catfish until brown and crispy, about 7 minutes. Let excess oil drain and keep warm in the oven.
Place the soft-shell crabs in the buttermilk mixture, then dredge in the cornmeal. Fry the soft-shell crabs until brown and crispy, about 8 minutes. Let excess oil drain and keep warm in the oven.
Cut the lobster tails in half lengthwise and remove the meat from the shell but leave it connected to the shell at the base. Place the lobster tails in the buttermilk mixture, then dredge in the flour. Fry the lobster tails until brown and crispy, about 6 minutes. Let excess oil drain and keep warm in the oven.
Place the shrimp in the buttermilk mixture, then dredge in the flour. Fry shrimp until brown and crispy, about 2 minutes. Let excess oil drain transfer to the oven.
Place the crawfish tails in the buttermilk mixture, then dredge in the cornmeal. Fry the crawfish tails until brown and crispy, about 4 minutes. Let excess oil drain and transfer to the oven.
Place the oysters in the buttermilk mixture, then dredge in the flour. Fry the oysters until brown and crispy, about 4 minutes. Let excess oil drain and transfer to the oven.
Place the alligator meat in the buttermilk mixture, then dredge in the cornmeal. Fry the alligator meat until brown and crispy, about 7 minutes. Let excess oil drain and transfer to the oven.
Fry the hush puppies, mini crab cakes, and calamari until crisp and golden brown, about 5 minutes. Let excess oil drain and transfer to the oven.
On the bottom layer of the tower, arrange the french fries in an even layer as a base. On top of the fries, place the catfish, hush puppies, shrimp, and alligator. On the second tier, layer the sweet potato fries. Top with the crab cakes, oysters, crawfish tails, and calamari. On the top tier, layer the onion rings. Top with the soft-shell crabs and lobster tails.
Serve the seafood tower with small bowls of cocktail sauce, tartar sauce, sweet Asian chili sauce, and the Creole Remoulade Sauce for dipping. Enjoy!