Justin Taylor is amazing. He must be plugged directly into the internet for the majority of the day. That's the only way to explain how he manages to post so much.
J.T.'s blog is different from most. The reason for this is that he primarily links to all sorts of things that are going on in the evangelical world (and beyond). Keeping an eye on his blog is something like watching a news feed on the world of Christianity.
Between Two Worlds is the best high-quantity blog out there. Another benefit is that Taylor discusses a wide variety of topics. As a bonus, he is Reformed.
I have to admit that J.T. posts so much that I don't read the majority of what he writes. It's best to think of this blog as a helpful resource that keeps you up-to-date on what is occurring in the Christian world. You won't find many long articles here, but you will know what is going on.