THE TOP TEN DISCOVERIES OF 2007 are featured in Archaeology Magazine's January-February 2008 issue. The one of interest for PaleoJudaica is the Nebo-Sarsekim Cuneiform Tablet. From the runners-up, note also Alexander's Isthmus, Tyre, Lebanon. The two stories were discussed on PaleoJudaica here and here.
If the Vision of Gabriel inscription is genuine, it certainly belongs in the top ten.