Skippy, the creamy one.
I know I'll get lots of hate for eating partially hydrogenated oil...but it tastes so good and spreads so easily. Honestly I hate trying to spread natty pb on a sandwich.
I use Teddie natural PB, and you can get it with flaxseed as well.
the cheapest kind i can find at the store
Smart balance is awesome stuff. Tastes just like jif without hyrogenated oils and has flax in it. Tastes too good to be natural pb.