You can count on each of those breeds being snappy if they were produced by a byb.
I have seen some EXTREMELY aggressive family of 3 bichons, a JRT, and a chihuhua that attacked me when I was 9. All of them were products of BYBs.
On the other hand, get any of those breeds from a reputable breeder and they should be very stable temperamental wise. JRTs are just VERY high strung, they are terriers.