I should have stated it more clearly. What I mean by soft boots are regular snowboarding boots, not the alpine board hard boots that are similar to ski boots.
gotcha. like you mentioned the salomon malamute are firm, supportive and are low volume. i ride the f22s-have been doing so for about four or five seasons (i've tried tons of boots and keep coming back to salomon).
as you probably already know, salomon uses a more narrow foot bed (which suites me perfectly), they do make wider boots in all models for fat foot disease.
The Malamute, Driver X are going to be the top 2 in terms of stiffness for this year. But it's all relative to how you can flex a boot and your body type. I ride next years K2 T1 DB's and it's a "stiff" boot for most people I find it to be a mid flex and use it for park every day.