Preheat oven to 350°F.
Add cream cheese, mayonnaise, sour cream and all seasonings to a large bowl. Stir until combined.
Stir in 1 cup sharp cheddar, 1 cup mozzarella, 1/2 cup Parmesan, jalapeños and all but 2 tablespoons bacon. Spoon into a baking dish or skillet and spread evenly. Top with remaining cheeses.
In a medium bowl, mix melted butter and breadcrumbs together and evenly spread on top.
Bake uncovered for 25-30 minutes, or until cheese is completely melted.
Turn oven to broil and broil for 3-5 minutes, or until top is golden.
Garnish with remaining bacon and serve immediately.