Nanook is a mix and even I am not 100% certain of his breeds but he's been mistaken for all of the following:
lab and lab mix
samoyed
purebred husy or purebred malamute
part wolf
part poodle
and just about any purebred or combination of any nordic breed

Raustyk has only been mistaken a few times, most of them by children:
pit
dobe

Kaige gets mistaken often:
husky (thats the most common, purebred and mixed, almost everyone thinks that)
spaniel mix
border collie mix
plain old mutt