I am a big fan of the writings of John Piper and desiringGOD.org is one of my favourite Christian websites. John Piper is a Baptist minister in the USA. His theology is heavily influenced by 18th century American preacher Jonathan Edwards. At first glance Piper feels very right-wing American, but if you read him carefully, there is much more depth, discernment and self-critique to what he writes.
I have just finished reading NT Wright’s “What St Paul Really Said”. I really enjoyed it. The strengths of the books are Wright’s understanding of what Paul’s gospel is, and his use of biblical theology to place Paul against the Old Testament themes that are fulfilled in Jesus Christ. The controversy in this book concerns the “new perspective on Paul + justification”. He is not entirely convincing, but he usefully challenges us to consider whether we are reading Paul closely or projecting our historical theology onto him.