I'm not sure if you're becoming acquainted with peanut butter, or just with putting it on crackers, but I have to recommend chunky peanut butter, too. While smooth peanut butter is just as tasty, I like the feel of real peanut chunks in the peanut butter.
I rarely use peanut butter as anything other than an ingredient in a recipe, and like any ingredient I use, I like to know what's in it. This is probably far more than you wanted to know about peanut butter, but there are also differences between "natural" peanut butter and "regular" peanut butter in terms of nutritional content (according to
http://nationalpeanutboard.org):
Peanut butter (from USDA Nutrient Database):
Serving size: 2 tablespoons
Total fat: 16g
Sat Fat: 3g
Sodium: 5mg
Sugar: 3g
Protein: 7g
Natural peanut butter (Top selling brand):
Serving size: 2 tablespoons
Total fat: 16g
Sat fat: 2g
Sodium: 0mg
Sugar: 1g
Protein: 8g
I personally prefer the natural peanut butters, though the "regular" kinds are still tasty. Pad Thai is a famous dish that uses peanut butter in a savory realm, though many other dessert recipes out there that use peanut butter.