I prefer Holtby over Price based on team surrounding him. Malkin is often injured or suffering from 'general body soreness' at the most integral moments of a playoff push. As good as Malkin has been this year, I would probably be hesitant to pull the trigger.
I fully expect others to take the Malkin over Panarin bump and say yes though. This one's close, but I'd personally hold and deny the deal.