I'm honestly more excited about Miller than Kravtsov; not because I think he is a better prospect, but because he may jump up everybody's rankings almost as quickly as Chytil did.
His development is a crucial point of measurement for Gorton, et al. The picks they had to give up for him combined (if I remember correctly) were valued as 6th or 7th overall. They bet heavily on Miller coming closer to the boom side of his potential.
edit - just looked up a couple charts. 26th + 48th = 6th approximately.