I can't really tell a difference in the taste between the organic and regular. They both taste pretty fresh. I remember a farmer's market run by Mennonites in my hometown in central Pennsylvania that would pulverize peanuts (or any nuts you wanted) right before your eyes in a hand-cranked grinder to make a butter out of them. It was as fresh as could be. The taste of the Trader Joe's brand is exactly half-way between that ground-right-in-front-of-you-by-Amish-types flavor and that of any traditional grocery store brand. Considering that the price is in the same ballpark as Jif or Peter Pan, it's a pretty good value.
I give them Four and a half Stars. Sonia gives them Four. Bottom line: 8.5 out of 10.