Depends on the band. Of the projects in recent years, my tunings in have been E/Drop D, Eb/Drop Db, and a couple of tracks only that were tuned in "Dropped Bb" (aka, the entire guitar is tuned down a half step except the low E, which is tuned to Bb). So, all of my guitars are tuned to either standard or half step down, then I retune the low E as necessary.