I've also read them, and my favorite is Gaal The Conqueror.The other ones are good too. I also really like The Quest For The King, especially because of its time-twisting.
In our Study Enrichment class we are reading the Sword Bearer! I read ahead and finished the book! They are really good. I'm thinking about seeing if I can get ahold of any of the other books.
The Archives of Anthropos briefly, is about a magical land called Anthropos in which the following children enter- John, Elanor, Wesley, Lisa, Kurt, Mary and Betty. They were writen by John White and the first book is called The Sword Bearer. They are simlar to Narnia and Lord of the Rings, and are based off Narnia. This is only though because John White was doing what his children wanted him to this was what happened: "My own children ganged up on me and came up with the request that since I wrote books for adults I could write them for children too. (Of course their assumption was incorrect!) We wouln't bug you anymore they said if only you'll write a book for us. But it has to be just like Narnia!" so theres the story and you get the picture. He only made the books like Narnia for his children. I give the books 5 stars personaly and love them.