u see u want a rotw. so im guessing u want a guard dog lol, theres nothing a "BIG" dog has that a boston terrier doesnt. really, not that i can think of, they are super inteligent aswell. the boston terriers that is.. chiuauas are very smart too they just arent the typical dog so they arent for everyone but i perosnaly if i could would buy a boston terrier or a french bulldog, omg they are so cute.