In whatever format the soap which takes my fancy comes to hand. This morning it was a cream, Speick, but yesterday it was more of a croap, MdC. Tomorrow it could be a hard puck of vintage Yardley, but we'll see.
I like them all. Have found that the best lathering technique varies bases on soap type. I lather right on top of my hard pucks and then finish with face lathering. Creams are applied directly to my face and then face lathered. For my Croaps I've found that they work best when scooped and spread in a small lathering bowl. Too hard to easily apply to my face and my brushes often don't load enough directly off the puck. For my Arko sticks I form them into pucks and then use like any other hard soap.