This is from my Amazon review of Edmund Clowney's The Message of I Peter: The Way of the Cross in The Bible Speaks Today series.
Clowney gives a straightforward and helpful exposition of this significant epistle. This series is highly readable, and Clowney's contribution on I Peter is no different. He has clearly thought long and hard about most of what he says, even if some of the argumentation for his views is left out of the book.
For a more serious exegetical commentary, look to Paul Achtemeier's Hermeneia volume, J. Ramsay Michaels' work in the Word Biblical Commentary series, or Peter Davids' NIC volume. I probably would agree more with Clowney's conclusions than any of Achtemeier, Michaels, or Davids, but the reality is that he's giving more of an exposition without always giving the scholarly details to back up those conclusions. When he does give arguments, they're often not detailed enough for someone who can handle the more detailed commentaries to be satisfied with. So even if I'm attracted by his conclusions, I can't always see how to respond to the others' arguments at the level they're dealing with.