Ligonier Ministries has a list and discussion of their top five commentaries on Acts.The list is solid but I would suggest that Polhill (NAC) and Luke Timothy Johnson (Sacra Pagina) probably belong in the top five, perhaps replacing Bruce and Marshall. In the runners-up I would include Stanley Toussaint's work in The Bible Knowledge Commentary. In any case, the top five they have listed are:
1. Darrell L. Bock -- Acts (Baker Exegetical Commentary on the New Testament, 2007).
2. F.F. Bruce -- The Book of the Acts (New International Commentary on the New Testament, 1988).
3. C.K. Barrett. -- Acts 1-14, Acts 15-28 (International Critical Commentary, 2004).
Like the commentary on Matthew by Davies and Allison, this two-volume commentary 4. Ben Witherington -- The Acts of the Apostles (1997).