Hi, mpav.
Rubs are a matter of taste and preference, and you may try many before you find one that you like enough to make it your "go to" rub. I have 2 or 3 that I use most often, including the recipe that our webmaster, TulsaJeff, sells here. For pork, my family likes a rub with plenty of sweet in it. I personally like rubs with some spiciness, but my family doesn't care for a lot of heat, so I have to compromise a little.
Another that I have used quite a bit lately on pork is this one:
Memphis Magic Dust Rub Recipe
Ingredients
3/4 cup firmly packed dark brown sugar
3/4 cup white sugar
1/2 cup paprika
1/4 cup Morton's kosher salt
1/4 cup garlic powder
2 tablespoons ground black pepper
2 tablespoons ground ginger powder
2 tablespoons onion powder
2 teaspoons rosemary powder
Yield, makes about 3 cups.
Good luck and have fun!
Red