The Apologetics. Do not get me wrong, I love Orthodoxy and I am more than grateful that God pulled me out of the dangerous Protestant Church. But, one thing I will admit is that Protestant Apologetics against atheists and non-Christians is much more developed and greater than Eastern Orthodox Apologetics. In my current situation I constantly have to defend my beliefs against the atheist community, and I have become pretty good at it. But, nearly all of the great apologists and apologetics authors are some type of Protestant. I love how the Protestant Church has formalized Apologetics and are releasing volumes of books refuting every atheistic argument to date. Whereas, in contrast, in the Orthodox Church we really have no great apologists like William Lane Craig, Normal Geisler or John Lennox. In fact, most of our theological attitude does not relate to problems like this. Eastern Orthodox Apologetics is more aimed towards defending our theologic and doctrinal points against other types of heresies, but nothing against atheism or materialism.
No offense to your apologetics list, but Norman Geisler is a horrible apologist. WLC is great in some areas (like philosophy of time) and worse in other areas. He really is an excellent debator, who thankfully doesn't hide behind the shallow rhetoric someone like Christopher Hitchens does. Alot of his argumentation is sort of "popular" level material, but he can get really in depth on his website. On the whole though I can recommend him.
John Lennox seems like a God of the Gaps sort of person, unless I'm classifying him wrong. I recall the Dawkins debate, while even Dawkins exhibiting a poor understanding of Christianity, Lennox resorts back to an emotional response.
The Orthodox Church doesn't need apologists in my opinion. The reason I feel that way is because alot of the atheist critcsms against Protestant Christianity gets answered so succintly and refuted so well by Orthodox theology, it's sort of pointless to address them. The only real arguments an atheist can have against the Orthodox Church are some very heady high level thinking, more so along the lines of God's usage of free will with man.
Anyway, if you want an Orthodox apologist look up David Bentley Hart's Atheist Delusions: http://www.amazon.com/Atheist-Delusions-Christian-Revolution-Fashionable/dp/0300164297/ref=sr_1_1?ie=UTF8&qid=1322272587&sr=8-1
Ignore the 1-star reviews, because Hart really does place a few nails in the new atheism coffin.
My main criticsm of the new atheist movement, if you can even call it that, lacks intellectual depth. Dr. Craig talks about this as well, because alot of these atheists want to hold on to fringe theories like the Jesus myth idea and a few others, but not really engaging in deeper philosophical problems and issues. Atheists simply dismiss God as irrelevant and unnecessary, but they never explore as to what the consequences of that is. Which is why a Christian, or a theist, can form the greatest arguments against God because God isn't viewed as "silly" or a belief like Santa Claus, but really get to the heart of the problem of dealing with the existence of God and problems of evil, theodicy, free will, etc.
Oh btw you want an outstanding
apologist, who isn't Orthodox? Look up Alvin Plantinga.