I like Dynamic better, but Conforming is quicker and more predictable.  Dynamic cloth would be way better if only it were able to shrink.  There's no such dial in the Poser cloth room.  The only way to get something to shrink is to start your figure off smaller than the clothes and grow her into it through animating the Scale dial.

Calculations are slow as well.  It would be amazing if it could harness the power of the GPU to calculate cloth, but at the moment I don't think it even harnesses all the CPU cores (although I'm not sure).