I'm not sure which is the worst, but huskies are definitely one of them. If you get one that doesn't dig, chew, howl, bark, chase cats, escape the yard, break its leash, or do just about any other obnoxious activity a dog can do, then you're just plain lucky and got the exception to the breed. Either that or you've been providing sufficient exercise--which is EXTENSIVE by the way--and mental stimulation.
Huskies are awful dogs to have as a pet if you can't take up an hour long daily jog. Poor weather isn't an excuse, either. Even show sibes are still hardcore working dogs and would happily run 20 miles if you let them. At absolute minimum they require one our of intense exercise every day, in the form of jogging or load pulling or both. While they are generally content to lounge about the house, a bored husky cannot be trusted outdoors, even in a fenced yard, unattended. They cannot be trusted off leash EVER. The vast majority will run away and come back when they want to, if at all.
Huskies aren't very loyal dogs, either. They love you as any other dog does, but they also love the complete stranger that walks into your yard with a leash saying in an excited voice "DOGGIE GO WALKIES!?" They'll happily follow him out to his car and never be seen or heard from again.
They also require extensive grooming. By extensive I don't mean trips to the groomer, special clips, or anything like that, but daily brushing all year round is necessary to keep shedding under control. They blow their coat twice a year. It falls out in chunks twice a year. Brushing daily during the warm months is necessary unless you like dog fur carpeting. :P
Most applies to the Malamute and Samoyed as well, though I believe the Samoyed is a little more mellow and forgiving for an inexperienced handler. Spitz breeds, including norwegian elk hounds, akitas, and chows, require a firm, confident, but gentle leader. They don't respond well, if at all, to yelling or hitting and may just decide "screw this" and run off. They require large amounts of exercise as all are energetic dogs. As I said, they may be content to laze around the house but once you get them outdoors you can't trust most of them off leash, especially huskies, mals, and akitas. They love to just run run run and they will whether you go with them or not lol.
Some of the other spitz breeds (malamutes, chows, and akitas) are prone to aggression if not properly trained and handled. They're definitely higher on the difficulty list than huskies for that reason. Huskies may be destructive when bored, but they generally don't hurt people. Malamutes and Akitas are known to be aggressive when not handled correctly.
[Add] Very General is right, the smaller spitz breeds --Alaskan Klee Kai, American Eskimo, Pomeranian, etc--tend to be easier to handle. They're companion dogs first and foremost, and are bred to be companion dogs, not working dogs. That obnoxious stubbornness isn't as deeply ingrained.
ASM--genetics don't work that way. You don't automagically get the best of both breeds in a mix. Usually you get some random mix. Sometimes you get all the good OR all the bad. It's a crapshoot. Don't believe me? Grab a high school biology book and flip through to genetics.
Huskies are, ironically, one of my favorite breeds to own.