In the event you are in a "modern" home, with an electric flat-top stove. the Pressure cooker you choose must have a flat bottom, or you run the risk of over heating and cracking your flat-top stove's cook surface.
I prefer the All American... besides being heavier duty, the lack of a rubber seal, allows it to be used even through an "end time" scenario, when rubber replacement seals will most likely not be available.
Just my 2 cents worth.