I am almost done with a class I have been taking on the Greek Fathers with Dr. Marc Cortez. It has been a facinating theological journey. I have come to greatly respect these men for their contributions to Christianity. The individuals we studied include the following: Athanasius of Alexandria, Basil the Great, Gregory of Nyssa, Gregory Nazianzus, John Chrysostom, Cyril of Alexandria, Maximus the Confessor, and John of Damascus. For those who are familiar with any of this theologians who would you say is your favorite?
the archives near Emmaus 
Clement of Alexandria, bar non.
It’s a tossup between Athanasius and Cyril of Alexandria. They were both huge in the Trinitarian and Christological controversies, Athanasius more so in the former, Cyril in the latter. For that reason I like them both equally but differently. 🙂
Origen because he was an original thinker, a protomystic, and condemned long after he was there to defend himself (which will probably happen to me while I’m alive at the rate I’m going).
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Of the ones listed, I’d go with Gregory of Nyssa. I think his writings on the nature of God are the fullest expression.