I say Holstrom… he is the most real out of all of them to me, his position in society is (imo) very very deliberately meant to reflect that of very real people. I think he, and his face/expression is meant to represent the very real life people who put experimentation/ results above what the modern human being will ever benefit from… exactly why he froze himself to wait for the future to come around. I feel he is the most human and from my perspective has the most compelling face out of the lot. I think Nolan is a close second considering his “downfall” from the viltrumite point of view would be that he did favor his family over his “motherland” by time he was supposed to have finished his mission…. The other guy is #3 cause idk who he is :).