The year-old ChopHouse, from the owners of the pub chain P.J. Whelihan's, is a welcome departure from the steakhouse chains that have long strangled Philadelphia. This isn't another clichéd rendition of heavy steaks, wine and wood paneling. Instead, the modern, airy ChopHouse serves up classics like nuanced, nutmeged oysters Rockefeller and silky steak tartare without a wink, and delivers serious steaks and sides. The level of quality makes the typical steakhouse prices easier to swallow.