My favorite peanut butter so far has been Lorann's peanut butter but it's definitely a sweet peanut butter. (like Peter Pan VS Jif) If you wanted a nuttier PB, TFA may be your best bet but I get an off note from it by itself. Mixing the two together would be ideal for me, personally. FE Peanut is a really good straight up peanut... but not peanut butter.
Chocolate, I agree with dc99. Molinberry's Glamour chocolate is excellent. Liquid Barn's lava cake is a great chocolate cake. A lot of people swear by Hangsen Australian Chocolate and FLV Chocolate Deutsch but I haven't worked with them enough to personally attest to it. That's about all I can think of it way of chocolate. Most chocolate flavorings are awful IMO.