When bands reunite after a lengthy split, the most anyone can really hope for is that they are as good as they were in their heyday. The Afghan Whigs have taken it a step further â with its first album in 16 years, “Do to the Beast” (Sub Pop), and its biggest headlining show in New York City ever at the Beacon Theatre on Oct. 4, 2014. The Afghan Whigs are now better than ever.