penny(JRTx) is our alpha dog , and being the smallest she is fearless
then i would say clover(rotty x), then theo(chihuahua), though those two have had arguments before

clover will defend her food & territory(scary somtimes) and that is all (theo learnt not to stick his lil head in clovers food bowl lol)

oh and the cat who thinks she is a dog is the true alpha