Heat the oven. Preheat the oven to 425°F (220°C) with racks in the upper and lower thirds. Most frozen fries bake at this temperature, but check each bag and follow its directions.
Line the pans. Line three or four rimmed half sheet pans with parchment paper. Spread each type of fry in a single layer with a little space between the pieces, since crowded fries steam instead of crisp.
Bake the slow fries first. Potato wedges and tater tots usually take the longest, about 25 to 30 minutes, so bake them in the first round. Flip them halfway through.
Bake the second round. Bake the shoestring, crinkle-cut, waffle, curly and sweet potato fries next, about 15 to 22 minutes depending on the package, flipping halfway. Slide the first round back onto the bottom rack for the last 3 to 5 minutes so everything comes out hot together.
Set out the dips. While the second round bakes, open the Heluva Good! dip and spoon the ketchup, garlic aioli and blue cheese dressing into small bowls. Place the dips on your board first so the fries can build around them.
Build the board. Pile each type of fry into its own section around the dips, alternating colors and shapes so the sweet potato and curly fries break up the gold. Season everything with flaky sea salt while it is still hot.
Serve right away. Scatter the parsley over the top, if using, and serve immediately. Hot and fresh is the key to a great fry board, so set it on a warming tray if guests will be grazing for a while.