Place 1/2 cup butter, 3 oz cream cheese, the 4 oz chopped ham, 1 tbsp wine and white pepper to taste; process until smooth.
Remove to small bowl, cover and chill.
In a blender, process another 1/2 cup butter, 3 oz cream cheese, the parsley, green onion, 1 tbsp of wine and white pepper to taste.
Remove to small bowl, cover and chill.
Process remaining butter, cream cheese, the red peppers, remaining wine and pepper to taste until smooth; remove to small bowl, cover and chill.
Line a glass 2-quart bowl or glass 9-inch pie plate with plastic wrap; sprinkle in cubed ham; spread the ham mixture, spread the red pepper mixture, and top with a layer of the parsley mixture.
Cover and chill overnight.
Display in serving plate; let sit at room temperature for an hour before serving.
Make it a day ahead to let set, unmold about an hour before serving with crackers.