The Maltese rates 5/5 for apartments and the Malamute 1/5, and the exercise ratings explain most of it: 2/5 against 5/5.
A Maltese needs roughly twenty to thirty minutes of walking a day plus indoor play, and at 4/5 trainability it enjoys short training sessions and learns tricks readily. Its 3/5 energy is real — it is lively rather than lazy, and it will trot around a flat happily — but the requirement is small and can be met without leaving the building on a bad day.
A Malamute needs two hours minimum with physical resistance in it: a loaded pack, a pulling harness, a rig, snow or steep ground. No indoor substitute exists, and in a warm climate the Arctic coat pushes the routine to first and last light for months of the year. A Malamute without that work does not become a quieter dog; it becomes a destructive one.
Climate reverses too. The Maltese has no undercoat, so it feels cold quickly and genuinely benefits from a coat in winter, while it copes well with Mediterranean warmth. The Malamute is the opposite in both directions.
On sociability, the Maltese is 4/5 with other dogs against 3/5 and 4/5 with strangers, matching the Malamute. Neither is a guard dog. Both rate 3/5 for barking, though the Maltese's is a sharp alert at the door rather than sustained noise, and both rate 2/5 for time alone — the Maltese because centuries of companion breeding produced a dog that wants company, the Malamute because boredom turns into landscaping.
Cost favours the Maltese but less than the size gap suggests: $100–180 a month against $150–300, cost level 3/5 against 4/5. Grooming appointments and dentals are why a 5 pound dog is not five times cheaper than a 95 pound one.