On Barbecue Marinade

I've tried to improve on my barbecue marinade for the past few months.. Here's my standard marinade ingredients that I want to share:

1 can Coca Cola Regular

2 tbsp Peanut Butter

few pcs of Calamansi

1 sachet Maggi Magic Sarap 

Garlic - minced and chopped

Ginger- chopped

Brown Sugar

Pork Spareribs - almost 1 K

I always boil the spareribs before I marinate it. I place salt and pepper prior to boiling to add some taste. After boiling the spareribs, I add the ingredients above. 

I welcome any suggestions you may have on how to prepare a great pork barbecue marinade! Suggestions on chicken barbecue marinade will be appreciated as well. :)